Nccam
abbr. National Center for Complementary and Alternative Medicine 全国补药和选择性药物中心
🗣️ 情景例句
He is a salesman or something.
他是做推销工作的。
I was wondering if you'd let me stay with you for a few days.
不知道你能否让我在你这里住几天。
Jack is trying to cut down on smoking.
竭克正竭力戒烟。