Quaternaries
[化] 季盐; 季铵盐类
🗣️ 情景例句
So how are we going to find the owners?
那么我们如何去找狗的主人呢？
Men, at soome time, are masters of their fates.
人有时是自己命运的主人。
What do you do in the theatre?J:
你在剧院做什么工作？