let on 〈口〉 1. 泄露(秘密)；流露真情 He never let on that he was married. 他从不透露自己已结婚。 Never let on to anybody. 千万别对任何人说。 She knew where the children were hiding but she didn't let on. 她知道孩子们藏在哪儿，但是不露声色。 I think you understand more than you let on. 我想你了解的要比你透露的多。 2. 假装 let on to being a stranger 假装是陌生人 She likes to leton that she is rich. 她喜欢装模作样，让人以为她很有钱。