Reins
pl. 腎臟, 腰部, 肺腑
??? 情景例句
once you get to know them.
一旦認識了周圍的人以后。
In college I majored in science, What was your major?
大學時我主修自然科學，你主修什么呢？
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
況且在宇宙中還有30億個天河，即銀河系。