"There’s nothing more deceptive than a smile, and no one knows this better than the people who hide behind them. Some flash their teeth as a polite warning to their enemies, some put on beaming faces to keep their tears from falling, others wear silly grins to mask their fear. But then, there is that rare smile that is actually genuine. It’s the smile of a person who knows his troubles will soon be over. " 
最具欺骗性的莫过于笑容。没有人比隐藏在笑容背后的人更了解这一点。有些人露齿微笑警告敌人，有些人笑容满面只为了不让眼泪落下；还有一些人傻笑着掩饰自己的恐惧。但是却很少会有笑容是真实的。知道自己的麻烦很快就要过去了的人才会有这样真实的笑容。 

1. deceptive [dɪ'septɪv] 
欺诈的，虚伪的
deceive v. 欺骗
cheat/ trick 欺骗

2. flash [flæʃ] 
v. 闪光，闪现
flash back 闪回，回想
flashing light 闪光灯

3. beaming ['biːmɪŋ] 
光亮的，耀眼的，喜气洋洋的
beam v.照耀n. 横梁，光线
laser beam 激光束

4. grin [grɪn] 
v./n. 露齿笑 
laugh大笑/smile 微笑/chuckle轻笑 /giggle 咯咯笑

5. genuine ['dʒenjʊɪn] 
真实的，真正的 ，诚恳的
genuine leather 真皮
If it is a genuine Michelangelo drawing, it will sell for millions.这要是米开朗基罗的真品，可以值几百万呢。
He's a very genuine person. 他是一个非常真诚的人。