重点讲解：
1. in common （兴趣或经历）共同的，相同的；
例句：Their marriage was a mismatch they had little in common.
他们的婚姻不般配，两人几乎无共同之处。
2. be passionate about 热情的；狂热的；
例句：If you are passionate about what you do, and stick with it, you can't help but be successful.
如果你热衷你所作的事情并且能够持之以恒，那么你一定能够成功。
3. whether or （表示选择或怀疑）是否，是不是；
例句：I'm not sure whether to resign or stay on.
我拿不准主意是辞职还是留任。
4. have one's say 发表意见；阐述观点；
例句：The Football Association have had their say.
足协已经发表了意见。
5. even if 即使；尽管；纵然；
例句：I will not give up even if there is only a gleam of hope.
哪怕只有一线希望我也不会放弃。
