Pipelines carrying oilcan be broken by faults or landslides,causing serious oil spills.
输送石油的管道可能因断层或山体滑坡而被破坏，造成严重的石油泄漏。
2
Pipelines carrying oilcan be broken by faults or landslides, causing serious oil spills.
输送石油的管道可能因断层或山体滑坡而断裂，从而造成严重的石油泄漏。
3
The supply of oilcan be shut off unexpectedly at any time, and in any case, the oil wells will all run dry in thrty years or so at the present rate of use.