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
Excuse the mess. I just moved here.
请不要介意这里乱得很 我刚刚搬来住。
My class went camping last summer.
去年夏天我们班去露营了。
You're very eloquent.
你看上去真精神。