Antigeny
雌雄异型
🗣️ 情景例句
I didn't expect you to do such a good job.
没想到你做得这么好。
How much will all this cost?
一共要花多少钱呢？
I don't know. I've got a headache and a cough.
我不知道。我头痛和咳嗽。