let on片语动词KK [lɛt ɑn] /lɛt ɑn/发音片语动词1透露、泄露、说出去口语,多用于否定句Don't let on that we're planning a party for her.别透露我们正在为她筹办派对的事。2假装、装作口语He let on that he hadn't noticed the mistake.他假装没有注意到那个错误。用这个字练口说→