Orthophotoscope
正射投影纠正仪
🗣️ 情景例句
I'm counting on it.
我有这种打算。
How much is it by registered mail?
挂号信要多少钱？
but the paper was wrapped round a drum which rotated slowly.
根但是纸是卷在慢慢旋转的圆筒上的。