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重点讲解：
1. follow in one's wake 紧随…；效仿…；
A group of reporters followed in her wake.
一群记者跟随在她的身后。
2. emanate from 来自(于)；(从…)散发出；
The heady aroma of wood fires emanated from the stove.
炉子里散发出木柴燃烧时的浓烈香味。
3. switch off 关掉，关上(电灯等)；
She switched off the coffee-machine.
她关掉了咖啡机。
4. as long as 只要；
As long as you have your health, nothing else matters.
只要身体健康，其他任何事都无关紧要。
vt. 保护，投保
