(单词翻译:单击)
to let on 泄露秘密（非正式用语）
英文释义
To reveal a secret.
例句
Everyone in the office was careful not to let on about the party planned for their manager's birthday.
办公室里的每个人都在小心翼翼地保守为经理举行生日聚会的秘密。
