1. Do you think Matt should be let in on Mystic Falls' secrets? 你认为该让Matt知道神秘瀑布镇的秘密吗？
2. Because here were two pretty rare examples of light being let in on the usually murky business of "talent retention" and "acquisition". 因为这是两个非常罕见的例子，让人们得以一瞥通常不为外人所知的“留住”和“获取”人才的问题。
3. Or perhaps your daughter felt you might tell other people outside the immediate family whom she was not yet prepared to let in on her secret. 又或者也许你的女儿认为你会告诉其他人这件事，而她还没有做好准备让她的秘密曝光。
4. Are you going to let them in on your plans? 你是不是打算让他们知道你的计划呀？
5. There was no let-up in the battle on the money markets yesterday. 对金融市场的争夺战昨天依然非常激烈。
