中英释义：
双语例句
据估计，有关方面需要花几个月时间封闭油井，油污的清理工作将耗时近十年。
It is estimated that a few months of time will take for the closed oil wells and much worse than that, the oil pollution clean-up operation will take nearly 10 years.
重点词汇
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封闭
close; seal; blockade; shut; confine; enclose; block up; shut off; seal off; close down; shut up; closure; sealing; closedown; closed; sealed; hermetic; confined; enclosed; up
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油井
oil well; well