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opportunistic + noun
opportunistic 常作定语，直接修饰名词，表示‘机会主义的、投机取巧的’。例如 an opportunistic infection（机会性感染）。
The board rejected the offer as an opportunistic takeover attempt.
董事会认为这是一次投机性的收购企图，因此拒绝了这个提议。
机会主义的；投机取巧的
先理解核心含义，再看它在真实句子里的用法。
机会主义的；投机取巧的
Taking immediate advantage of any circumstance, often unethically, for possible benefit.
The board rejected the offer as an opportunistic takeover attempt.
董事会认为这是一次投机性的收购企图，因此拒绝了这个提议。
利用出现的机会。
Taking advantage of situations that arise.
利用情况谋取自身利益而不顾道德原则。
Taking advantage of situations to advance one's own interests without regard for moral principles.
She made an opportunistic use of her vacation time to network with a potential employer.
她投机取巧地利用假期时间，与一位潜在雇主建立联系。
An opportunistic shopper may wait until a store's closing sale to buy furniture at a discount.
投机取巧的购物者可能会等到商店停业促销时，打折购买家具。
His opportunistic attitude annoyed his friends because he only showed up when he needed a favor.
他投机取巧的态度让朋友们很恼火，因为他只在需要帮忙的时候才出现。
opportunistic 常作定语，直接修饰名词，表示‘机会主义的、投机取巧的’。例如 an opportunistic infection（机会性感染）。
The board rejected the offer as an opportunistic takeover attempt.
董事会认为这是一次投机性的收购企图，因此拒绝了这个提议。
表示‘在做某事时投机取巧’，in 后接动名词或名词。
Politicians are often opportunistic in using crises to push their agendas.
政客们常常投机取巧地利用危机来推进自己的议程。
表示‘对某事持投机态度’或‘对某事采取机会主义做法’，about 后接名词或动名词。
She is opportunistic about taking on work that raises her profile.
她对承接能提升自己知名度的工作表现得相当投机。
Not this
He is very opportunity.
Use this
He is very opportunistic.
opportunity是名词，意为“机会”，不能作表语修饰人；此处应用形容词opportunistic（机会主义的、投机取巧的）。注意区分词性。
Not this
Opportunistic is common in politics.
Use this
Opportunism is common in politics.
opportunistic是形容词，不能作主语；表示“机会主义”这个抽象概念要用名词opportunism。
Not this
He is opportunistic for taking advantage of others.
Use this
He is opportunistic in taking advantage of others.
表示“在……方面投机”时，opportunistic搭配介词in，而不是for；for表目的或原因，与句意不符。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
投机取巧行为；机会主义行为
Customers dislike the opportunistic behavior of companies that raise prices during an emergency.
顾客讨厌公司在紧急情况下涨价这种投机取巧的行为。
机会性犯罪；顺手牵羊式犯罪
Most thefts from unlocked cars are opportunistic crimes rather than planned burglaries.
大多数从没锁的汽车里偷东西的案件都是机会性犯罪，而不是有计划的入室盗窃。
投机取巧的政客；机会主义政客
The newspaper accused the mayor of being an opportunistic politician who changes views to win votes.
该报指责市长是个投机取巧的政客，为了赢得选票而改变立场。
顺手牵羊的小偷；机会主义窃贼
An opportunistic thief grabbed the phone she had left on the café table.
一个顺手牵羊的小偷拿走了她落在咖啡馆桌上的手机。
Use opportunistic naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
opportunity（机会）里长出 opportunistic：一有机会就扑上去，甚至不顾道义，就是“投机取巧”。
语域：formal 常见场景：政治/财经评论、职场与商业分析 多用于正式或书面语，常带贬义，指利用一切机会谋取利益或好处，有时不顾及道德；日常口语中较少使用。
这些词与opportunistic共享重读的尾音节 /-ɪstɪk/，因此押韵。注意拼写相似的fantastic (/fænˈtæstɪk/)、domestic (/dəˈmestɪk/) 和 systematic (/ˌsɪstəˈmætɪk/) 重读元音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.