the middle of a group of people or things中间,当中,中央
She caught sight of Johnny in their midst (= among them), laughing and talking.她看到约翰尼在他们当中,又说又笑。
in the midst of sth in the middle of an event, situation, or activity正当…的时候;在…之中
I'm sorry but I'm too busy - I'm in the midst of writing a report.恐怕我太忙了——我正在写一份报告。
The country is in the midst of an economic crisis.这个国家正在经历一场经济危机。