Ethanedithioamide
[机] 红氨酸
🗣️ 情景例句
I'd like to check this book out.
我想借这本书。
What's your nationality? Are you an American.
你的国籍是什么？你是美国人？
Oh, that's my sister, Kate. Come here, Kate. I can see you.
哦，是我妹妹。凯特。过来凯特，我看见你了。