您要查找的是不是：
- The students are working on a mathematical problem. 学生们正在解一道数学习题。
- Try to keep your work on a high plane. 努力将你的工作保持在高水平上。
- You should not always sleep on a problem. 你不要总把问题留到第二天解决。
- I'm at work on a new project now. 我现在正忙于一个新工程
- The captain used to work on a drifter. 船长曾在流刺网渔船上工作过。
- We have three people work on a free lance basis. 我们有三个授雇于他人的独立工作的人。
- The sculptor is working on a sculpture of Venus. 那个雕刻家正在雕一个维纳斯雕像。
- Whether they can finish the work on time is still a problem. 他们是否能准时完成这项工作还是个问题。
- We charge for the work on a cost plus basis. 我们用成本加成的方法计算工程报价。
- Working on a farm is a new departure for him. 对他来说，在农场工作是一种新的尝试。
- Work on a farm is a new departure for him. 对他来说，在农场工作是一种新的尝试。
- He's hard at work on a new novel. 他正努力忙着写一本新小说。
- It's fun to work on a jigsaw puzzle. 拼图游戏真的很好玩。
- The crew aboard the International Space Station is working on a problem with the system for collecting solid and liquid waste, which is a trickier proposition without gravity than it is on the Earth. 目前，国际太空站的工作人员正在处理固/液废物收集系统出现的问题，由于太空失重，问题变得更棘手。
- Ll do anything but work on a farm. 除了去农场干活,我什么都干。
- I am working on a master's degree in civil architecture. 我在攻读民用建筑专业的硕士学位。
- I'll do anything but work on a farm. 除了到农场去干活,什么事我都干。
- I'm going to work on a document. 我要起草一份文件。
- I'm going to work on a new book in my office. 我要在办公室里写一本新书。
- We need your help on a problem that is causing us serious concern. 在这个我们深深关切的问题上，我们需要贵公司帮助。
