Rayage
[医] 射线用量规定
🗣️ 情景例句
We need to know about your history with animals.
我们要了解你以前与动物的关连。
I'll probably stay home and watch television.
我希望可以呆在家看电视。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，