U-v
[计]= UltraViolet,紫外线
🗣️ 情景例句
He is in trouble all the time.
他总是有麻烦。
Like mother, like daughter.
有其母必有其女。
and that this happens at a rate which differs little from person to person,
衰老的速度在人与人之间相差甚微，