23rd Apr. 2018
toss /tɒs/ 意思是摇晃
turn /tɜ:n/ 意思是翻转
toss and turn的意思就出来了：辗转反侧，夜不能寐。
I was up all night, tossing and turning, thinking about what the girl said to me.
（失眠了一宿，想着小妹跟我说的话...）
加个短语：
Cream of the crop
百里挑一, 指的是一组事物中最好的或群体中最佳的。
Luke is our best football player; he is by far the cream of the crop!
卢克是我们中间最好的足球运动员，他是迄今为止最出色的球员！
当然了还可以这样：
Yudan is my best student in my life. She is by far the cream of the crop!
Roger is my best English teacher in my life.He is by far the cream of the crop!
