Polycysteine
[化] 聚胱氨酸
🗣️ 情景例句
I'm going to be a pop star like Michael Jackson.
我要当迈克尔.杰克逊那样的歌星。
Don't you think you've eaten enough?
你不是吃的很多了吗？
Let's watch TV with a candle on.
咱们点上蜡烛看电视吧。