hunch over 弯腰驼背
webcam n. 网络摄像头
comport with 适合;与……一致
successive adj. 连续的;依次的
hang on to 紧紧抓住;紧握
paycheck n. 薪水
tap out 敲出;敲打出
fall back on 求助于
gauge n. 测量标准
turn up 出现;出席;出勤
have no option but to 只能……除了……别无选择
immerse in 全神贯注于，专心于
pecking order 社会等级
stay put 留在原地;停住不动
thrive v. 繁荣;兴旺
drop out 退出;脱离
a rash of 大批
grapevine 秘密情报网;葡萄藤
drum up 竭力争取;纠集;鼓动
at vast expense 大笔的开支
Question time:
1. What's the main reason that white-collar workers back to formality?
2. Can you list 3 features that indicates white-collar workers' back to office?