Camera pulpi
[医] 髓腔
🧩 词语组成解析
🗣️ 情景例句
and made me feel more confident.
使我对自己更加有信心。
It's up in the air.
尚未确定。
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。