Nccls
[医][=National Committee for Clinical Laboratory Standards]全国临床实验标准委员会
🗣️ 情景例句
And when I see an opportunity,
而且当我一看到机会，
We've arranged our schedule without any trouble.
我们已经很顺利地把活动日程安排好了。
Look! That girl has fallen off her bicycle.
看！那个女孩从自行车上摔下来了。