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It depends on whether he is engaged in legitimate action .

这取决于他从事的是否是合法行为。

Sense is not the only company engaged in reality mining .

感觉公司（sense）不是从事于现实挖掘的唯一公司。

When crusoe devotes his physical efforts toward the indirect satisfaction of goals , he is engaged in labor .

当克鲁索把体力劳动用于间接满足目的时，他是在从事劳动生产。

Many nations and not merely the united states and japan are engaged in trade and the trade often takes roundabout directions .

不光是日本和美国，还有许许多多的其他国家都在从事各种交易，而且这些交易通常是迂回式的。

Chinese fishermen and fisheries personnel have engaged in several confrontations with vessels of other nations in those waters in recent years , drawing more protests .

近年来，中国渔民和渔业人员已经从事于与一些其他国家在这些水域的船只的对抗，引起更多的抗议活动。