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
Excuse me. My name is Richard Stewart.
对不起 我叫Richard Stewart。
Does it make any difference to you whether we have our lesson at two o'clock or at three o'clock?
我们在两点上课还是在三点上课，你觉得有关系吗？
Our foreign trade policy has always been based on equality and mutual benefit and exchange of needed goods.
我们的对外贸易政策一向是以平等互利、互通有无为基础的。