Baur
n. biologically active ultraviolet radiation 具有生物活性的紫外辐射
🗣️ 情景例句
My brother is a junk food addict.
我兄弟就爱吃垃圾食品。
How much is this?
这个多少钱？
I had a wonderful time here.
我在这里度过了难忘的时光。