但是，首要的是要明白供给是如此不足，得看看到作为世界第二大石油生产国的俄罗斯当下石油产业的状况。

But to understand how supplies became so scarce in the first place, one must look at the state of the oil industry in Russia, the world's second-biggest producer.

youdao

但是，首要的是要明白供给是如此不足，得看看到作为世界第二大石油生产国的俄罗斯当下石油产业的状况。

But to understand how supplies became so scarce in the first place, one must look at the state of the oil industry in Russia, the world's second-biggest producer.

youdao