Mesaortitis
[医] 主动脉中层炎
🗣️ 情景例句
I don't know what you are driving at.
我不知道你到底想说什么。
What time do you think it is?
你以为现在几点？
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。