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
How do you tie your bow tie?
你怎么打领结的？
This woman used too much soap in her washing machine.
这个女人放了太多的洗衣粉到洗衣机里。
Now, dressed in a blue uniform and with a rifle over his shoulder, the prisoner marched boldly up and down in front of the camp.
现在他身穿蓝军装，肩扛步枪，在军营门前大胆地来回走看。