您要查找的是不是：
- He worked at his essays with great care. 他对自己的文章精雕细刻。
- He worked at his biology. 他致力于生物学。
- He worked at his biology . 他致力于生物学。
- He worked hard at his biology. 他努力学习生物学。
- He still worked at his biology. 他仍然钻研他的生物学。
- He worked hard at his studies ever in his early childhood. 他从小就认真读书,刻苦学习。
- He works at the American Embassy in Moscow. 他在莫斯科的美国驻俄大使馆工作。
- Later,he also worked at his grandfather's grocery store. 后来他还在祖父的杂货店干过一段时间。
- He works at the local post office. 他在本地的邮局工作。
- He worked at a novel in the library. 他在图书馆里写他创作的那本小说。
- He turned away from the messenger to work at his loom again. 他撇下那两个捎口信的来者，又去织布。
- Do he work at a factory or a school? 他在工厂工作还是在学校工作?
- Does he work at a factory or a school ? 他在工厂工作还是在学校工作?
- He worked at the frontier of brain science. 他的工作处于脑科学的前沿领域。
- He worked very hand at his lessons in order that he would tet gook grades. 对别人礼貌一些，这样你就可能和你的新朋友相处得很好。
- He became very tired of working at his algebra, but after a while he got his second breath and began to enjoy it. 他做代数做厌了，但过了一会儿，他重新振作起精神，又开始兴致勃勃地做起来。
- Punctual as a clock, he works like a galleyslave at his lectures. 像时钟一样准时的他,讲起课来如同船上的奴工。
- He goes to Robert's character Orrin Blake to see if he can work at his bank. 他接着罗伯特的性格参议员布雷克看到如果他能在他工作的银行。
- Xiao Wang often dropped in when he worked at the college. 小王在大学工作时经常到我家来。
- All day long he worked at making shoes, as he had done in prison. 他像在监狱里那样,整天专心致志地缝制鞋子。
