My elder sister stopped her diet after a week. ☊ 
Chị của tôi đã dừng chế độ ăn kiêng của cô ấy sau một tuần. ☊ Medical like: a week → →
about a week ago ☊ cách đây khoảng tuần lễ ☊ to pay a week in advance ☊ trả trước một tuần ☊ 763
Do you go out much? — No, I used to go out three (3) nights a week though. ☊ Cậu có hay ra đường không? - Không, nhưng tôi đã từng ra đường ba tối một tuần. ☊ 1647
There are sev(7) days in a week. ☊ Có bảy ngày trong một tuần. ☊ 2265
Flora works eight (8) hours a day, six (6) days a week. ☊ Flora làm việc tám tiếng một ngày, sáu ngày một tuần. ☊ 2340
I bought enough groceries at the supermarket last night for a week. > I bought a week's worth of groceries last night. ☊ Tối qua tôi đã mua đủ thực phẩm ở siêu thị cho một tuần. > Tối qua tôi đã mua thực phẩm cần cho một tuần. ☊ 2689
Sachiko is going away for a week in September. ☊ Sachiko sẽ đi vắng một tuần trong tháng chín. ☊ 2709
I'll be back IN a week. ☊ Tôi sẽ quay về trong vòng một tuần nữa. ☊ add that...: He added that they would return a week later. ☊ add ☊
a week/month/year in advance ☊ in advance (of sth) ☊
She studies art two afternoons a week. ☊ afternoon ☊
away from sb/sth: She was away from work for a week. ☊ away ☊
a week's growth of beard ☊ beard ☊
If you can only exercise once a week, that's better than nothing (= better than taking no exercise at all). ☊ better ☊
Her promotion means she's $100 a week better off. ☊ be better off ☊
We had a weekend break in New York. ☊ break ☊
They left the au pair in charge of the children for a week. ☊ charge ☊
it is claimed that...: It was claimed that some doctors were working 80 hours a week. ☊ claim ☊
The villa is cleaned twice a week. ☊ clean ☊
come to do sth: They're coming to stay for a week. ☊ come ☊
I do aerobics once a week. ☊ do ☊
a week earlier ☊ early ☊
After a week at sea, it was good to feel the earth beneath our feet again. ☊ earth ☊
I didn't have enough clothes to last a week. ☊ enough ☊
The sender of the first correct entry drawn will win a weekend for two in Venice. ☊ entry ☊
The play is to run for an extra week! ☊ extra ☊
Feed the plants once a week. ☊ feed ☊
They fixed the rent at £100 a week. ☊ fix ☊
'What do you say to a weekend in New York?' 'Sounds like fun.' ☊ fun ☊
I fill up the tank with gasoline about once a week. ☊ gasoline ☊
good (about sth): I had to take a week off work but my colleagues were very good about it. ☊ good ☊
Fears are growing for the safety of a teenager who disappeared a week ago. ☊ grow ☊
guarantee to do sth: We guarantee to deliver your goods within a week. ☊ guarantee ☊
It was heaven being away from the office for a week. ☊ heaven ☊
It will be ready in a week's time (= one week from now). ☊ in ☊
a weekly disposable income (= the money that you have left to spend after tax, etc.) of £200 ☊ income ☊
We spent a week on the Greek island of Kos. ☊ island ☊
I kept a weekly account of my workload and activities. ☊ keep ☊
Cut the grass at least once a week in summer. ☊ at least ☊
You can't live on forty pounds a week. ☊ live on sth ☊
a weekly/monthly magazine ☊ magazine ☊
He has to manage on less than £100 a week. ☊ manage ☊
I spend at least six hours a week marking. ☊ mark ☊
$20 means a lot (= represents a lot of money) when you live on $100 a week. ☊ mean ☊
Come back Monday week (= a week after next Monday). ☊ Monday ☊
We spent a week walking in the mountains. ☊ mountain ☊
You can't feed a family on £50 a week. ☊ on ☊
He cleans his car once a week. ☊ once ☊
A week went past and nothing had changed. ☊ past ☊
pay sth for sth: She pays £200 a week for this apartment. ☊ pay ☊
a week-long programme of lectures ☊ programme ☊
Roughly speaking, we receive about fifty letters a week on the subject. ☊ roughly ☊
sell (sth): The magazine sells 300 000 copies a week. ☊ sell ☊
She has a weekly session at the health club on Saturdays. ☊ session ☊
survive on sth: I can't survive on £40 a week (= it is not enough for my basic needs). ☊ survive ☊
I go swimming twice a week. ☊ swim ☊
She trained five times a week at her local swimming pool. ☊ swimming pool ☊
A week to go, and that's it! ☊ that's it ☊
The exams start a week today/today week (= one week from now). ☊ today ☊
I'm leaving a week from today. ☊ today ☊
They go there twice a week/month/year. ☊ twice ☊
By a curious twist of fate we met again only a week or so later. ☊ twist ☊
The factory typically produces 500 chairs a week. ☊ typically ☊
The unfortunate animal was locked inside the house for a week. ☊ unfortunate ☊
wages of £200 a week ☊ wage ☊
a weekly wage of £200 ☊ wage ☊
He comes to see us once a week. ☊ week ☊
a week ago today (= seven days ago) ☊ week ☊
She'll be back in a week. ☊ week ☊
It's my birthday a week on Tuesday. ☊ a week next/on/this Monday, etc., a week tomorrow, etc. ☊
She started work a week yesterday. ☊ a week yesterday, last Monday, etc. ☊
I like to go out on a weekend. ☊ weekend ☊
He won a weekend for two in Rome. ☊ weekend ☊
a weekend break ☊ weekend ☊
a weekly magazine ☊ weekly ☊
Don't put any weight on that ankle for at least a week. ☊ weight ☊