[] making use of an opportunity, especially to get an advantage for yourself; not done in a planned way机会主义的；投机的◆The group acquired the struggling company last year in an opportunist move.这个集团在去年的一次投机活动中并购了这家举步维艰的公司。▸ˌopporˈtunist
noun
[] ◆This new market is very attractive to business opportunists.这个新市场对商业机会主义者而言是非常有吸引力的。▸opportunistically /ˌɒpətjuːˈnɪstɪkli; NAmEˌɑːpərtuːˈn-/