Cysteinamine
半胱氨酸胺
🗣️ 情景例句
Don't litter.
请不要乱扔东西。
There is no sense in what he says.
他说的话没有道理。
Which would you like, a cup of tea or a glass of milk?
你想来点什么，一杯茶还是一杯牛奶？