Nchs
[医][=National Center for Health Statistics]全国卫生统计中心，全国健康状况统计中心
🗣️ 情景例句
He strikes the table angrily.
他气得大拍桌子。
Yes,I have both your hat and your coat.
不，你的帽子和大衣都在我这里。
I've never met him but I've talked to him on the net.
我没见过他，但我和他在网上聊过天。