nhưng ngược lại trong khi 
whereas 
I need sixty minutes while they need one hour. ☊ 
Tôi cần sáu mươi phút trong khi họ cần một giờ. ☊ Dates and Time The songwriter grumbles while walking. ☊ Vị nhạc sĩ cằn nhằn trong khi đi bộ. ☊ Reduplicative Words like: trong khi → →
2156
It's foolish of Liting to quit her job when she needs the money. ☊ Lệ Đình thật dại dột khi bỏ việc trong khi cô ấy đang cần tiền. ☊ 2184
Daisuke failed to solve the problem, whereas Aiko succeeded in solving the problem. ☊ Daisuke đã không giải được bài toán trong khi Aiko đã giải thành công bài toán. ☊ 2813
Some children feel proud of their parents, while others are ashamed of them. ☊ Một số đứa trẻ tự hào về bố mẹ chúng trong khi một số khác lại xấu hổ vì họ. ☊ 2814
Many children make their parents proud, while some make their parents ashamed. ☊ Nhiều đứa trẻ làm bố mẹ chúng tự hào trong khi một số khác làm bố mẹ chúng xấu hổ. ☊ 2896
It's terrible that some people are dying of hunger while others eat too much. ☊ Thật kinh khủng khi một số người đang chết vì đói trong khi những người khác ăn quá nhiều. ☊ If you're going to rent out your house while you're abroad, you'll need someone to act as your agent here. ☊ agent ☊
arrange with sb (about sth): I've arranged with the neighbours about feeding the cat while we are away. ☊ arrange ☊
ban sb from doing sth: She's been banned from leaving Greece while the allegations are investigated. ☊ ban ☊
behave yourself: I want you to behave yourselves while I'm away. ☊ behave ☊
Burglars had broken in while we were away. ☊ break in ☊
Carry on with your work while I'm away. ☊ carry on (with sth), carry sth on ☊
We were chased by a bull while crossing the field. ☊ chase ☊
Let's talk over coffee (= while drinking coffee). ☊ coffee ☊
Please make yourself comfortable while I get some coffee. ☊ comfortable ☊
Here's my contact number (= temporary telephone number) while I'm away. ☊ contact ☊
He got into difficulties while swimming and had to be rescued. ☊ difficulty ☊
discover sb/sth: Police discovered a large stash of drugs while searching the house. ☊ discover ☊
We discovered this beach while we were sailing around the island. ☊ discover ☊
I broke the vase while I was dusting. ☊ dust ☊
The museum is closed while essential repairs are being carried out. ☊ essential ☊
He gained valuable experience whilst working on the project. ☊ experience ☊
I'll give you covering fire while you try to escape. ☊ fire ☊
I took her classes for her while she was sick. ☊ for ☊
Let me write it down while it's still fresh in my mind. ☊ fresh ☊
gather sth together/up: I waited while he gathered up his papers. ☊ gather ☊
We got through a fortune while we were in New York! ☊ get through sth ☊
He got into trouble with the police while he was still at school. ☊ get into sth, get yourself/sb into sth ☊
Half an hour went past while we were sitting there. ☊ go ☊
a gradual change in the climate ☊ gradual ☊
One of the men kept guard, while the other broke into the house. ☊ guard ☊
Give me your hand (= hold my hand) while we cross the road. ☊ hand ☊
I had a cigarette while I was waiting. ☊ have ☊
Hold on a minute while I get my breath back. ☊ hold on ☊
Eat it while it's hot. ☊ hot ☊
Nobody was in when we called. ☊ in ☊
increasing levels of carbon dioxide in the earth's atmosphere ☊ increase ☊
Tiredness while driving can kill. ☊ kill ☊
Who's going to look after the children while you're away? ☊ look after yourself/sb/sth ☊
I'm looking after his affairs while he's in hospital. ☊ look after yourself/sb/sth ☊
You stay there with the luggage while I find a cab. ☊ luggage ☊
Bob spent fifteen months alone on his yacht. Ann, meanwhile, took care of the children on her own. ☊ meanwhile ☊
The doctor will see you again next week. Meanwhile, you must rest as much as possible. ☊ meanwhile ☊
Stress can be extremely damaging to your health. Exercise, meanwhile, can reduce its effects. ☊ meanwhile ☊
a device that measures the level of radiation in the atmosphere ☊ measure ☊
Please make sure all mobile phones are switched off during the performance. ☊ mobile phone ☊
Do not alight while the train is still in motion (= moving). ☊ motion ☊
order (sth) (for sb): Will you order for me while I make a phone call? ☊ order ☊
I went swimming while the others played tennis. ☊ other ☊
The booklet contains information on pain relief during labour. ☊ pain ☊
I was moving some furniture and I twisted my ankle in the process (= while I was doing it). ☊ process ☊
Could you keep the kids quiet while I'm on the phone? ☊ quiet ☊
(+ adv./prep.): I walked back while the others rode in the car. ☊ ride ☊
I found these photos while searching among some old papers. ☊ search ☊
The group listens while one person shares (= tells other people about their experiences, feelings, etc.). ☊ share ☊
She shut the dog in the shed while she prepared the barbecue. ☊ shut sb/yourself in (sth) ☊
She slid out while no one was looking. ☊ slide ☊
Some people never seem to put on weight while others are always on a diet. ☊ some ☊
She stayed at home (= did not go out to work) while the children were young. ☊ stay ☊
Keep still while I brush your hair. ☊ still ☊
stir sth into sth: The vegetables are stirred into the rice while it is hot. ☊ stir ☊
Work has temporarily come to a stop while the funding is reviewed. ☊ stop ☊
As he pushed her, she swung higher and higher (= while sitting on a swing). ☊ swing ☊
Turn that thing off while I'm talking to you! ☊ thing ☊
The letter was in my pocket all the time (= while I was looking for it). ☊ all the time, the whole time ☊
Can you touch your toes? (= by bending over while keeping your legs straight) ☊ toe ☊
They've turned off the water while they repair a burst pipe. ☊ turn sth off ☊
Steve took a turn driving while I slept. ☊ turn ☊
Can you wait a second while I make a call? ☊ wait a minute/moment/second ☊
Could you watch my bags for me while I buy a paper? ☊ watch ☊
Some of the studies show positive results, whereas others do not. ☊ whereas ☊
We thought she was arrogant, whereas in fact she was just very shy. ☊ whereas ☊
Her parents died while she was still at school. ☊ while ☊
shoes mended while you wait ☊ while ☊
Some people work better to music while others do not. ☊ while ☊
You'll water the plants while I'm away, won't you? ☊ will ☊
It is difficult to find work in the present economic climate. ☊ work ☊