Cistine
氨基酸
🗣️ 情景例句
If I fail this test I'll kill myself.
我这次考试要是通不过，就得自杀了。
I want to reserve a seat from los angeles to tokyo.
我要预订一张从洛杉矶到东京的机票。
After a few minutes she started to cry again. Listen to me, I said.
几分钟后她又哭了起来。“听我的呀，”我说。