Nonadecandioic acid
[化] 十九烷二酸
🧩 词语组成解析
🗣️ 情景例句
I'm afraid i've brought you a lot of trouble.
恐怕我给你带来了不少麻烦。
Do i need a reservation to go by ship?
我坐船去需要预订吗？
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。