Quaternaries
[化] 季盐; 季铵盐类
🗣️ 情景例句
What are you getting at?
你想说明什么？
I will take a taxi.
我将去搭出租汽车。
so I got a ladder from the shed in the garden, put it against the wall,
于是，我从花园的小棚里搬来了一个梯子，把它靠在墙边，