Uvb
[医][=ultraviolet light,midrange sunbeam spectrum]紫外线B光谱, 中波紫外线光谱
🗣️ 情景例句
A taxi can get you there in less than five minutes.
乘坐的士到那儿不用5分钟。
What color is your book?
你的书是什么颜色？
Certainly. One moment, please.
当然。请稍等。