挪威在北海拥有丰富的天然气田。
Norway has rich gas ___fields in the North Sea.
火山的上部是一片广阔的黑色熔岩地。
The upper part of the volcano is a vast ___field of black lava.
他们在南极洲的冰冻冰原上寻找陨石。
They searched for meteorites on the frozen ice ___fields of Antarctica.