Nonquaternary
[化] 非季盐的; 非季铵盐的
🗣️ 情景例句
What's your impression of China?
你对中国印象如何？
She looks so pale, she must be ill.
她脸色很苍白，一定病了。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。