Megaparsec
n. [天]百萬秒差距
??? 情景例句
Oh, how do you do, Xiao Fu. This is Mary.
哦，你好，小付。我是Mary。
A road of a thousand miles begins with one step.
千里之行始于足下。
The majority of thepatients attending the medical out-patients departments of our hospitals
在醫(yī)院門診部看病的大多數(shù)人