Lame duck
没有实权 站不住脚的
例句：
The governor of our state ended up as a lame duck when he lost the election. He still has six weeks left in office but there's nothing to do except to pack up his papers.
我们州的州长竞选连任失败，因此即将下任。他的任期还剩六个星期，不过他除了整理办公室以外也没有什么事可干了。
To clear the air:
打扫空气 ×
消除隔阂 √
例句：
From their experience, I think making everything clear is the best way to clear the air.
从他们的经历中，我知道了消除误会的最好方法是把事情说清楚。
Burning question:
燃烧的问题 ×
十万火急的问题 √
例句：
It's a burning question for me if I should buy the house.
对于我来说，是否要买房是个十万火急的问题啊。
By word of mouth:
口口相传 √
例句：
I think the best way of advertising is by word of mouth.
我认为最好的广告方式是口口相传。
