Baur
n. biologically active ultraviolet radiation 具有生物活性的紫外辐射
🗣️ 情景例句
It's going to be a piece of cake.
这种事不费吹灰之力。
Do you like football?
你喜欢足球吗？
The man went to great lengths to prove that the diamonds were real.
那人竭力想证明那钻石是真货。