Pheron
酶蛋白, 脱辅基酶
🗣️ 情景例句
Good-bye, Robbie. Good luck.
再见 ，Robbie ，祝你好运。
You've got the point.
你抓住了问题的实质。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？