1.the working/middle/upper class 工人/中產(chǎn)/上層階級(jí)
all classes of society 社會(huì)各階層人士
the professional classes 專業(yè)階層
different classes of drugs 不同種類的毒品
be in a different class from most of his contemporaries 與大多數(shù)的同代作家相比,更為出類拔萃
be in a class of her own 比大多數(shù)同行都要出色
例句：Those who push this reactionary poison in the working class are the trade unions and their various middle class radical allies.
在工人階級(jí)中推行這種反動(dòng)毒藥的是貿(mào)易聯(lián)盟和各種各樣的激進(jìn)的中產(chǎn)階級(jí)盟友。

2.the last vestiges of 最后的殘余
例句：With it went the last vestiges of my courage.
隨之而去的還有我最后的那一絲膽量。

3.put sb up 留…過夜
例句：She told the Guardian how in 2006 she was working as a personal assistant to the man, who put her up in a hotel so she could be close to work.
在2006年，她是如何以某男子的助理的身份工作的，男子安排她住在一家酒店里，好讓她方便工作。

4.set an alarm 定鬧鐘
Alarm go off 鬧鐘響了
be in a deep sleep/trance/coma 酣睡；昏睡；昏迷
例句：Every hour, set an alarm on your computer or phone to go off.
在你的鬧鐘或者手機(jī)里設(shè)定一個(gè)以一個(gè)小時(shí)為間隔的停下來的時(shí)間。