求翻译：尼日利亚自身石油产业非常落后，那里的炼油厂破败不堪，运输管道年久失修，储运成本节节攀升。该国的领导者宁可将原油卖往海外也不愿意投资修建炼油厂。是什么意思？

Nigeria's own oil industry is very backward, where dilapidated refineries, pipelines fell into disrepair, storage and transportation costs are climbing. The country's leader would prefer to sell crude oil overseas also are reluctant to invest to build the refinery.

Nigeria's oil industry is very backward, where the oil refineries in a deplorable state, the transport pipeline in a state of disrepair, storage and transportation costs rising steadily. The country's leaders would rather crude oil sold to overseas are not willing to invest building oil refineries.

The Nigerian own petroleum industry falls behind extremely, there refinery is unable to withstand ruined, transports the pipeline in disrepair after many years, the storage and transport cost climbs successively.This country's leader rather sells the crude oil toward the overseas is not willing to i

Very backward its own oil industry in Nigeria, where the refinery of squalor, dilapidated transport pipelines, storage and transportation costs rising. The country's leaders would prefer to sell the crude oil overseas are not willing to invest in the construction of the refinery.

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