重点讲解：
1. end up 最终；结果；到头来；
If you don't know what you want, you might end up getting something you don't want.
如果你不知道自己想要什么，到头来你可能得非所愿T!jFtM|SVuRe#ZU。
2. set off 引发；触发；激起；
It set off a chain reaction in the international money markets.
这一事件在国际金融市场上引起了连锁反应[o++ujbksvY*Ljp。
3. ever since 自从；打…以后一直；
She had been worrying ever since the letter arrived.
自从接到那封信后她就一直焦虑不安1J!ucX3*9U3]。
4. come up 即将发生；即将到来；
Plan your activities so that you are rested and refreshed when something important is coming up.
做好日常规划，这样一旦发生大事，才能够从容不迫Wxq2rjvKuQ_~v~。