David's disease
[医] 戴维氏病(脊椎结核病,龈及粘膜大量出血)
🧩 词语组成解析
🗣️ 情景例句
Breathing this air is killing me.
呼吸这样的空气真是致命。
Do you know when he will be back?
你知道他什么时候会回来？
It's a pencil-box.
一只铅笔盒