(13)strike while the iron is hot趁热打铁。

　　Father is in a good mood at the moment.Strike while the iron is hot and ask him to let you go to the circus.这时父亲的情绪很好，乘此机会求他让你去看马戏。

　　(14)there’s no smoke without fire无火不冒烟;无风不起浪。

　　The story is all over the town. It is being spread by someone or by some people. There's no smoke without fire.这个传说遍及全城，有人或有些人还在散布。真是无火不冒烟。

　　(15)a thorn in the flesh (side)肉中刺;棘手的事，不断使某人烦恼的根源。

　　(l6)The memory of this act will be a thorn in the flesh for the rest of your life，my boy.这种行动会使你不断引起回忆。使你终生烦恼，我的朋友。