词典释义：
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To harvest oil and gas profitably from the North Sea, we must focus on the exploitation of small reserves as the big wells run dry.
由于大油井的枯竭，要想从北海有利地获取石油和天然气，我们必须集中精力于小储量油井的开采。
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He spent the weekend profitably.
他过了一个有收获的周末。
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The 28 French stores are trading profitably.
那28家法国商店在盈利。
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In fact he could scarcely have spent his time more profitably.
事实上他几乎不可能把他的时间花得更有益了。
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A male calf born to a dairy cow is the wrong breed to profitably be raised for beef. His fate is much worse.
出生在乳制品作坊的公牛犊就是一个错误的品种，养着只能制成牛肉卖钱。它的命运更加坎坷。
词根 profit
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profitable adj. 有利可图的；赚钱的；有益的
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profitless adj. 无益的
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profit n. 利润；利益 vi. 获利；有益 vt. 有益于
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profitability n. 赢利能力；收益性；利益率
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profitableness n. 有利，有益