Pentamethylenediamine
[医] 五甲烯二胺, 尸胺
🗣️ 情景例句
We had a great time, Mom.
我们玩得非常开心，妈妈。
Beauty may have fair leaves, but bitter fruit.
美丽的花或许长好叶，结苦果。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。