Uniplanar
a. 位于同一平面的
??? 情景例句
It has been raining constantly for two days.
雨連續下了兩天。
But you have to pay 5% commission on this money exchange.
但兌換這筆外幣，您得另外付5%的手續費。
I can't say for certain off-hand.
我還不能馬上說定。