Cerberin
海芒果毒素
🗣️ 情景例句
It's nice to see you again.
很高兴再见到你们。
What do you want us to do?
您看怎么办好？
where chance discoveries play a much larger part than they do in physical and mechancal industries.
同物理和机械工业相比，化学工业中偶然发现的机会要多得多。