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 .
