英语语法分析

They want those Arctic oilfields to make money.

那就是，他们都希望这些北极油田赚钱。

Coal seams, like oilfields, vary hugely in their geology.

就像油田一样，煤层在地底下也非常巨大。

Even so, their output declines at roughly twice the pace of oilfields in the North Sea.

即便如此，产量也大约比北海油田下降两倍。