常用短語(yǔ)

polar ice sheet極地冰蓋；極地冰原

polar ice cloud極地冰晶云

Polar Ice Tray極地冰盒；極地冰球冰塊模具

polar ice cap極地冰冠；極地冰帽

Polar Ice Bucket北極熊冰桶

polar ice cap melting兩極冰川融化

Melting of polar ice-caps極地冰川融化

polar ice caps極地冰川

polar ice core極地冰心