(informal) to tell a secret （对某人）说出秘密，泄密
I’m getting married next week, but please don’t let on to anyone.
我下周就要结婚了，但这事请对谁都不要说。
let on (to sb) that…
She let on that she was leaving.
她透露说她要离开
(informal) to tell a secret （对某人）说出秘密，泄密
I’m getting married next week, but please don’t let on to anyone.
我下周就要结婚了，但这事请对谁都不要说。
let on (to sb) that…
She let on that she was leaving.
她透露说她要离开