Quaternary ammonium hydroxide
[化] 季铵碱
🧩 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
n. 氢氧化物\\n[化] 氢氧化物
🗣️ 情景例句
and I'm running for the open seat on the school board.
我正在竞选联合校董会的席次。
First come, first served.
先来先卖。
If you want to send a letter to an office abroad that is in a different time zone, you can send a fax, and it will be received even though the office is not open.
如果你要寄信到不同时区的国外办公室，你可以发个传真，即使办公室不开门，信也会被收到。