If a man deceives me once, shame on him; if twice,shame on me. --John Ray
人欺我一次，此人可耻；欺我二次，我可耻。 ——约翰·雷
一、你知道twice有几种含义吗？
adv.
1.两次 two times; on ten occasions
We pay a bonus twice a year and we give three weeks holiday a year.
我们每年发两次奖金，放三周假。
2.两倍 double in quantity, rate, etc.
The figure of seventy-million pounds was twice as big as expected.
7,000 万英镑的金额是预期的两倍。
二、含有twice的常见短语，你会用吗？
think twice
重新考虑,在想一想;犹豫,踌躇
三、一起来做个填词游戏吧！
You'd better think _____________ before you take the final action.
你最好三思而后行。