Sabach
钙积层
🗣️ 情景例句
Where do you usually spend your weekends?
你通常在哪度过你的周末？
I'm afraid you will miss your test.
我怕你会错过测验。
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。