重点讲解：
1. a pat on the back
赞许；表扬；
eg. The players deserve a pat on the back.
球员们值得表扬。
eg. If you do something well, give yourself a pat on the back.
事情做得漂亮时，给自己一点表扬。
2. think outside the box
创造性思考；
eg. We need to think outside the box.
我们必须跳脱窠臼，做另类的思考。
eg. You won't come up with good ideas until you think outside the box.
你不可能突然想出好的点子，除非你能跳出思维的定势。
3. be fed up with
厌倦的；厌烦的；腻味的；
eg. I'm fed up with the children's behavior.
我对这些孩子们的行为烦透了。
eg. I'm fed up with this boring life.
我受够了这种枯燥的生活。
4. have no choice but to do sth.
不得不；只好；
eg. We have no choice but to turn back.
没办法，我们只有回去。
eg. I have no choice but to believe what you're saying.
我除了相信你的话，别无选择。