Radioprotectant
辐射防护剂
🗣️ 情景例句
Oh, you're right.
哦， 说得对。
How much is it to rent an economy car?
租一辆经济车要多少钱？
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。