https://online2.tingclass.net/lesson/shi0529/0009/9907/513.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
let me know 告訴我，讓我知道
If you need anything, just let me know.
有任何需要，都請告訴我。
Whatever happens to him, let me know at once.
不管他發(fā)生什么事情，請立刻通知我。
瘋狂練習吧!
