Umer
abbr. unit mass emission rates 单位质量发射率
🗣️ 情景例句
What university are you attending?
你现在就读于哪所大学？
Laugh at your ills, And save doctors' bills.
生病不忧虑，节省医药费。
Here was a seven-year-old girl who at the age of 19 months had become deaf and blind.
一个7岁的女孩，出生19个月后就得了聋盲症。