Cistine
氨基酸
🗣️ 情景例句
Please don't be in such a hurry.
请别这么急。
I think it's going to be too dry.
我认为天气将会太干。
I like folk music. I write my own songs and I play the guitar as well.
我喜欢民间音乐。我唱的歌自己谱曲，我也弹吉他。