1. 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。
2. He spent the weekend profitably. 他过了一个有收获的周末。
3. The 28 French stores are trading profitably. 那28家法国商店在盈利。
4. 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。
5. 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。
