Nccls
[医][=National Committee for Clinical Laboratory Standards]全国临床实验标准委员会
🗣️ 情景例句
Hi, Alexandra. Come on in.
嗨， Alexandra 。请进。
We are in the same boat, we both failed the exam.
我们都一样，考试都没及格。
Ready? Go! Mr. Hu shouted, and the boys started to run.
“预备--跑！”胡先生喊道，男孩子们开始跑。