36.You don't want to do that。你不应该去做。 (来源：英语学习门户 http://www.EnglishCN.com)

37.My grandfather is nearly 90 and in his second childhood。我祖父快90岁了，什么事都需要别人来做。

38.Work once and work twice。一次得手，再次不愁。

39.Rubber easily gives way to pressure。橡胶很容易变形。

40.If my mother had known of it she'd have died a second time。要是我妈妈知道了，她会从棺材里爬起来。