误 It was in middle school that I first learned some knowledge about classical literature.
正 It was in middle school that I first obtained some knowledge about classical literature.
析knowledge作“知识”解,可与表示获得的动词acquire, gain, obtain等连用,但不能跟study或learn连用。
经过几年的自学,他获得了不少知识。误 After several years' self-study he acquired a great deal of knowledges.
正 After several years' self-study he acquired a great deal of knowledge.
析knowledge是不可数名词,没有复数形式。
