Pyr
[医][=person-year rad]个人年受照射拉德
🗣️ 情景例句
We'll come upstairs and get you in a little while.
我们待会儿就上楼来带你下去。
The facts coincide with Mark's story.
事实和马克的话吻合。
I turned round again.
又一次回过头去，