Uv-b
[医][=ultraviolet-B radiation]紫外线B辐射
🧩 词语组成解析
abbr. 紫外的（ultraviolet）
🗣️ 情景例句
Butter, nice and cold and hard.
牛油 新鲜又冷又硬。
Can I stop over on the way?
我在中途可以停吗？
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，