Beur
n. biologically effective ultraviolet radiation 具有生物效应的紫外辐射
🗣️ 情景例句
He's up there at the lodge.
他在那边小屋 。
I'll be back in 5 days.
我五天之后回来。
I make them for workers and farmers.
我做完了给工人和农民用？