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
It's no secret my wife is expecting a baby.
我老婆快生孩子了，这又不是什么秘密。
He who has lost his good name is a dead man among the living.
丧失好名誉，犹如活死人。
Duck your head as you go through the door there.
经过那儿的门时，请将头放低。