sit in on (pt, pp sat)
⇒ 他旁听了昨天的董事会。
He sat in on yesterday's board meeting.
take (pt took) (pp taken)
⇒ 他旁听夜校的课。
He's taking evening classes.
英语词典包含298861条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。