Pergelisol
n. [地]永久凍結帶
??? 情景例句
Paper or plastic?
現金還是信用卡？
Geographically,this country is located in the southern hemisphere.
這個國家在地理上位于南半球。
This material looks nice. And so does this one.
這種料子看來不錯，這個也很好。