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
Smoking is addictive, and causes cancer, But the point I most want to emphasize is that it damages the health of those around you.
吸烟会上瘾，会引发癌症。但我最想说的是，吸烟同时也有损你的健康。
What is this?
这是什么？
Why don't you come swimming with us?
你干嘛不和我们一起游泳呢？