Pentamethylenetetrazole
戊撑四唑
🗣️ 情景例句
Our tow truck's being repaired.
我们的拖车正在修理呢。
A good medicine tastes bitter.
良药苦口，忠言逆耳。
There are also endless numbers of birds in the tar as well.
沥青坑里还有无数只鸟的尸体。