Radiosclerometer
[医] [X线]透度计, [X线]硬度计
🗣️ 情景例句
How come you're not studying?
你为什么不学习？
We can't draw well.
我们不能画那么多。
I'm afraid we haven't got any black shoes in that size at the moment.
恐怕此刻我们没有8号的黑色鞋了。