opportunist
noun [ C ] usually disapproving uk/ˌɒp.əˈtʃuː.nɪst/ us/ˌɑː.pɚˈtuː.nɪst/
机会主义者，投机取巧者
someone who tries to get power or an advantage in every situation
He was portrayed as a ruthless opportunist who exploited the publicity at every opportunity. 他被刻画成为一个一有机会就大肆宣扬的无情的机会主义者。
opportunist
adjective [ usually before noun ] usually disapproving uk/ˌɒp.əˈtʃuː.nɪst/ us/ˌɑː.pɚˈtuː.nɪst/
投机的；机会主义的
using a situation to get power or an advantage
The burglary was probably carried out by an opportunist thief who noticed the door was open. 入屋盗窃的可能是一个看到门开着就决定撞一下运气的小偷。
Synonym: opportunistic