- (also opportunist)(disapproving)
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;见风转舵的 - [only before noun] (
medical )医学 harmful to people whose immune system has been made weak by disease or drugs 机会致病性的(对免疫系统差的人有害) an opportunistic infection 机会性感染