Hafnyl
铪氧基
🗣️ 情景例句
on the farm.
在农场。
It was after dark when we got back,and we were all tired.
我们回来时天已经黑了，并且我们都很疲倦。
Yes, speaking. Just a moment. Let me turn the music down. There, that's better.
是的，我就是。请稍等。让我把音量关小一点。你瞧，好多啦。