Antigentotherapy
抗原疗法
🗣️ 情景例句
I frankly don't know what to do about it.
我真不知道该怎么解决。
What is thelargest industrial center in this country?
这个国家最大的工业区是哪里？
Oh, good evening. May I speak to Ann, please?
噢，晚上好！我想跟安讲话，行吗？