difficult + Hard; not easy; you need to work hard to do it ? difficulty + Something that is hard to do ? trad: 夫妻雙方應該同舟共濟。 simpl. 夫妻双方应该同舟共济。
Fūqī shuāngfāng yīnggāi tóngzhōu-gòngjì.
Husbands and wives should stand together in difficult times.
( Google and Bing Machine Translations: )Những người chồng và người vợ nên đứng cùng nhau trong lúc khó khăn. ?
Người chồng và người vợ nên đứng cùng nhau trong thời điểm khó khăn. ?
( Human Translation: )
...............................................................
trad: 這個姿勢不容易。 simpl. 这个姿势不容易。
Zhège zīshì bù róngyì.
This is a difficult posture.
( Google and Bing Machine Translations: )Đây là một tư thế khó khăn. ?
Đây là một tư thế khó khăn. ?
( Human Translation: )
...............................................................
difficult, hard ? 
khó ? Adjectives 1 This cave is very difficult to find. ? Hang này rất khó tìm. ? Places We meet a difficult case. ? Chúng tôi gặp một tình huống khó. ? Abstract Objects 2 What are your difficulties? ? Những khó khăn của bạn là gì? ? Reduplicative Words 2 The difficulties will be solved if I become more patient. ? Những khó khăn sẽ được giải quyết nếu tôi trở nên kiên nhẫn hơn. ? Reduplicative Words 2 difficulty ? khó khăn ? Reduplicative Words 2 
khó nhất + most difficult, hardestlike: difficult ? ?
a disease difficult to cure ? bệnh nan y ? to create difficulties, complicate things, make work or trouble for oneself ? bới việc ? spikes and thorns, difficulties, obstacles and dangers ? chông gai ? not to mind (difficulty) ? chẳng quản ? to be influenced by; to sustain, bear, accept, be subject to, experience (something unpleasant, difficult), endure, stand, put up with; on credit ? chịu ? isn't difficult (at all) ? có khó gì ? hard, difficult work ? công việc khó nhọc ? inured to (hardships, difficulties) ? dày dạn ? to avoid the difficult and do the easy ? dễ làm khó bỏ ? (1) dishonest, underhanded, tricky (2) apartment, room
(3) difficult, hard
(4) danger, peril ?
gian ? to solve difficulties, problems ? giải quyết khó khăn ? to create difficulties ? gây khó khăn ? to face difficulties ? găp khó kăn ? to meet with difficulties, have problems ? gặp khó khăn ? to meet with, encounter many difficulties ? gặp nhiều khó khăn ? to meet with difficulties ? gặp trục trặc ? full of obstacles and difficult of access ? hiểm trở ? important and very difficult of access ? hiểm yếu ? place full of obstacles and difficult of access ? hiểm địa ? a little difficult, somewhat difficult ? hơi khó ? a little difficult, somewhat difficult ? hơi khó khăn ? to develop, utilize the highland or the difficult region ? khai sơn ? stomach difficulties ? khó chịu vùng bụng ? make difficulties, raise difficulties ? khó dễ ? serious difficulties ? khó khăn nghiêm trọng ? great difficulty, obstacle ? khó khăn to lớn ? hard, difficult, painful, laborious ? khó nhọc ? with no difficulty at all ? không khó khăn gì ? in difficulty, in danger, in trouble, in a tight spot, in a bad situation ? khốn ? it’s so hard, it’s so difficult, it’s so painful ? khổ quá ? to spread widely; widespread, difficult to stop, rampant ? lan rộng ? complicated, involved, difficult, intricate ? lắt léo ? (carry something) with difficulty (because it is heavy) ? lễ mễ ? hard, difficult, serious (illness) ? ngặt nghèo ? expatiate (elaborate) on one’s difficulties ? nói khó ? hard, difficult, desperate ? ráo riết ? very difficult to understand ? rất khó hiểu ? so it’s difficult, isn’t it? ? thế có khổ không ? to breathe difficultly, have trouble breathing ? thở thực khó ? to meet with difficulties, have great difficulty ? trầy trật ? difficulty; to run into difficulties, go awry ? trục trặc ? financial difficulties; needy ? túng thiếu ? to be caught or entangled, meet with difficulties ? vướng mắc ? hard, difficult; diligent ? vất vả ? to be difficult to please ? vặn vẹo ? bad luck, difficulty, misfortune ? ách vận ? a very difficult thing ? điều vô cùng khó khan ? rescue (from a siege, danger, difficulty), renege on the sale of ? đánh tháo ? to place in a difficult situation ? đặt vào thế khó xử ? tide over the current difficult time ? đỡ thì ? to have difficulty finding a husband ? ế chòng ? to have difficulty finding or have no customers ? ế hàng ? to have difficulty finding or have no customers ? ế thiu ? to have difficulty finding a wife ? ế vợ ?