Ph
氢离子指数\\n[医] 药典; 苯基
🗣️ 情景例句
when the dog scratched on the front door.
当那狗在抓前门时。
It is better to please a fool than to anger him.
惹得傻瓜发火，不如使他快活。
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；