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
Were you here last time on his birthday party?
上次你有没有参加他的生日舞会？
I'm not doing anything right now.
我现在不在做任何事。
He began to catch up with the others.
他开始赶上其他人。