Phrma
[医]Pharmaceutical Research and Manufacturers of America
🗣️ 情景例句
You don't sound very enthusiastic.
你似乎不太热衷。
That's another story.
那是另一回事。
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。