Ph standard
[机] pH标准
🧩 词语组成解析
氢离子指数\\n[医] 药典; 苯基
standard
['stændɚd]
n. 标准，规格;旗，军旗;度量衡标准;直立支柱;
adj. 标准的，合格的;普遍的，一般的;公认为优秀的;
🗣️ 情景例句
I have a tourist visa.
旅游签证。
I'm ashamed. I couldn't tell you my love.
我真的不好意思,爱你在心口难开呀。
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。