重点讲解：
1. top-notch
一流的；顶尖的；
eg. Her artistic creations are top-notch.
她的艺术创作是一流 的。
eg. They're well-known in academic research a top-notch place.
他们在学术研究领域很是著名，处于拔尖的位置。
2. fall asleep
入睡；睡着；进入梦乡；
eg. Foods containing carbohydrates, fat and sugar all make it harder to fall asleep.
含有碳水化合物，脂肪和糖的食物都让你比较难以入睡。
eg. He lay down on the sofa and soon fall asleep.
她躺在沙发上很快就睡著了。
3. be mad at
对……生气；
eg. I guess they're mad at me for getting them up so early.
我想我这么早就叫他们起床，他们对我一定很恼火。
eg. He said sorry to me, so I was not mad at him anymore.
他跟我道歉了，所以我就不再跟他生气了。