摘要：39.He came out of the library, a large book under his arm.他夹着本厚书，走出了图书馆。

31.You've got me there. 你考倒我了.

32.It slipped mymind. 我不留神忘了。

33.It will cometo me. 我会想起来的。

34.He is a walking skeleton. 他很瘦。

35.Don't be so modest. 别这么谦虚。

36.It's up to you. 由你决定。

37.The line is engaged. 电话占线了。

38.Can you dig it？你搞明白了吗？

39.He came out of the library, a large book under his arm.他夹着本厚书，走出了图书馆。

40.The brothers differ from each other in their interests.这几个兄弟各有所好。

41.Although we can't see these atoms, they really do exist.虽然我们看不见原子，但它们的确存在。

42.I am familiar with the casual atmosphere in the company.我对公司中这种放松的氛围感到很熟悉。

43.Most people eat, write, and work with their fight hands.大多数人吃饭，写字，工作都用右手。

44.Only by working hard can we succeed in doing everything.只有努力，才能成功

45.He thinks himself somebody, but we think him nobody.他自以为是重要人物，但我们觉得他什么也不是。

46.I believe I haven't reached the summit of my career.我相信我还没有达到事业的巅峰。

47.It is no matter whether you get there early or late.你早到晚到都没有关系。

48.It's against the rules to handle the ball in soccer.在足球中以手触球就是犯规。

49.The nurse assisted the doctor in the operating room.护士在手术室协助医生动手术。

50.What I do on my own time is nobody else's business.我在自己的时间里干什么根本不关别人的事。

来源：芳芳课堂