1、This Wang Erk'ai was a well-known young politician, a middle-level official in Chungking.
這王爾愷是個(gè)有名的青年政客，在重慶做著不大不上的官。

2、The company has 15 senior technical staff of 28 middle-level titles, and 36 assistant engineers.
公司現(xiàn)有高級工程師15人，中級職稱技術(shù)人員28人，助理工程師36人。

3、This article is leading demands for middle-level cadres to conduct lectures and writing well.
本文是應(yīng)領(lǐng)導(dǎo)要求，為中層干部進(jìn)行講座而精心寫作的。