op·por·tun·ist
adjective/ˌɒpəˈtjuːnɪst/
/ˌɑːpərˈtuːnɪst/
(also opportunistic)
[usually before noun] (often 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 - an opportunist crime
临时起意的偶发犯罪 - Smith marked his debut match with an opportunist goal.
史密斯以一个机会主义进球标志着他的首场比赛。
Word Originlate 19th cent.: from opportune + -ist. - an opportunist crime