Calcium metabolism
[医] 钙代谢
🧩 词语组成解析
🗣️ 情景例句
How is the view?
景色怎么样？
A little knowledge is a dangerous thing.
浅学误人。
I'm afraid I can't do that right now. the manager isn't here.
恐怕我现在不能退钱给你。经理不在这里。