Tetramethyl-ammonium
[化] 四甲基铵
🧩 词语组成解析
a. [化]四甲基的
n. 铵\\n[化] 铵
🗣️ 情景例句
when it's very cold out.
冬天外面很冷的时候。
It seems he has a lot of bright ideas.
看起来他好像有很多聪明意见。
Was it too big?
太大了吗？