1. dozens of 几十（个）
But as you know, we have dozens of applicants to be answered.
但你也知道，我们还有好几十个应征者等着面谈b3A!+,us#qj^%U.Sx-。

2. crackdown on 镇压
Rights groups have said the campaign is being used as an excuse to crackdown on dissent and round up dissidents ahead of the Olympic Games.
人权组织说，当局利用打击网络色情活动作为借口，在奥运会到来之前压制异见，逮捕异议人士hY+[J+V|(k。

3. lighten up 缓和
It's a funeral—nothing you do will lighten up the mood.
这是在葬礼上——你再怎么做，也缓和不了大家的情绪Pw&6e~4I9*(sST3Rsz。

4. sign on for 报名参加
She has signed up for a yoga class yesterday.
她昨天报名参加了一个瑜伽班sRqmH[fj*5ERT[EY。