Quaternary ammonium compound
[化] 季铵化合物; 四级铵化合物
🧩 词语组成解析
a. 四个一组的, 四元的, 四价的, 季的\\n[计] 四进制的, 四元的
n. 铵\\n[化] 铵
🗣️ 情景例句
Tomorrow. Harry has an account to work on today.
明天。Harry今天有项会计工作要做。
Half a tale is enough for a wise man.
聪明人凡事只须听一半，就会明白究竟。
I can see why you are having some problems with it.
我明白为什么你用起来会有问题了。