Standard toxin
[医] 标准毒素
🧩 词语组成解析
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;
toxin
['tɔksin]
n. 毒素;毒质;
🗣️ 情景例句
How many people are there in your family?
你家里有几口人？
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
I was late for work yesterday，
我昨天上班迟到了。