Heterolysin
异种溶素
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
How much does she need?
她需要多少？
No, it isn't. I think it's her eraser.
不，不是我的。我想那是她的橡皮擦。