Nccls
[医][=National Committee for Clinical Laboratory Standards]全国临床实验标准委员会
🗣️ 情景例句
And Richard thanks you.
Richard也会感谢你。
I've got a terrible pain in my back.
我的背很痛。
Do you give each other presents at Christmas?
圣诞节你有送礼物给别人吗？