Uvb
[医][=ultraviolet light,midrange sunbeam spectrum]紫外线B光谱, 中波紫外线光谱
🗣️ 情景例句
You know, the goods were inspected by the Commodities Inspection Office before shipment.
你知道，这批货物在装船前是经过商品检验局检验的。
I tried several times to call, but there is no answer.
我打了几次，但是没有人回答。
I don't care for very hot weather.
我不喜欢热天。