Beur
n. biologically effective ultraviolet radiation 具有生物效应的紫外辐射
🗣️ 情景例句
I have two days off a week.
我一星期休息两天。
His argument doesn't hold water.
他的论点站不住脚。
I had left it on a chair beside the door and now it wasn't there!
我曾把它放在门边的椅子上，可这会儿不见了！