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n.桶( barrel的名词复数 )，枪[炮]管，一桶（的量），桶（石油计量单位，相当于120 到159 升）...
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OPEC production is holding at around 21.5 million barrels a day.石油输出国组织的石油产量保持在每天约2,150万桶。Several fishermen sat on wooden barrels, tending their nets.几个渔夫坐在木桶上修补渔网。The company buys and sells about 600,000 barrels of oil ...
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The farmers put up the apples in barrels.农夫们把苹果装入箱内。OPEC production is holding at around 21.5 million barrels a day.石油输出国组织的石油产量保持在每天约2,150万桶。In 1989, Kuwait was exporting 1.5 million barrels of oil a day...1989年，科威特每天出口...