Thymamine
胸腺精蛋白
🗣️ 情景例句
I'm a big movie fan.
我是个电影迷。
Three removes are as bad as a fire.
三次搬家犹如一次失火。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。