Apotoxin
过敏毒素
🗣️ 情景例句
Pleased to meet you.
很高兴见到 。
I thought about going to my sister's. How about you?
我想去姐姐家玩，你呢？
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。