because she's had to go to Chicago on a business trip and can't leave till tonight.
因为她得到芝加哥出差,而且要到今晚才能脱身。
Each bird loves to hear himself sing.
鸟儿都爱听自己唱歌。
In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglected.