您要查找的是不是：
- They have done their work very ably. 他们胜任出色地做完了工作。
- My parents do their best to keep up the family tradition. 我的父母为了保持家庭的传统竭尽全力。
- They have done their utmost to learn the techniques of production. 他们尽了最大努力去学习生产技术。
- Some of the students had done their homework but most hadn't. 有些学生做了作业，但大多数都没做。
- We'll carry on as arranged and they can do their worst. 我们还按我们的计划办事,他们想怎么使坏就随他们便吧。
- He clammed up over their possible future moves. 对于他们今后可能采取的步骤，他保持缄默。
- Our comrades must do their utmost to learn the techniques of production. 我们的同志们必须用极大的努力去学习生产技术。
- The teacher had to keep after her pupils to do their homework neatly. 教师一再嘱咐她的学生要把作业写整齐。
- Some people are not doing their whack. 有的人没有尽力。
- done their possiblev. 竭尽所能
- do their possiblevi. 竭尽所能
- They did their utmost to hog as much profit as possible. 他们拼命攫取利润。
- They will do their best to help on this project. 他们将尽力推动这项研究工作。
- Those two girls do their hair in the same way. 那两个女孩把头发梳成相同的式样。
- Everyone should be free to do their own thing. 任何人都应该有按自己的方式行事的自由。
- Must I keep servants and myself do their work? 难道我有佣人还得自己操劳吗?
- Every one of them has done their best. 他们每人都尽力而为了。
- Doctors do their best to treat the sick, but they can't perform miracles. 医生尽力治疗病人，但他们无法创造奇迹。
- Now they have done their money in. 现在他们把钱都花光了。
- The layman is generally more concerned with their possible unethical uses. 外行人通常担心它们可能产生非道德的用途。
