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
I know we're getting some attention now,
我认为我们现在固然渐渐引起一些注意，
Do as the Romans do.
入境要问俗。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。