opportunistic [ˌɑ:pərtu:ˈnɪstɪk]

例句:

• Rather, they take a utilitarian, opportunistic approach.
  来自NEWYORKER
• Procurement section only lists opportunistic infection drugs without specifying which drugs.
  采购部分只说明有治疗机会性感染的药物,但并没有说明是什么药物.
  
• Many of the party's members joined only for opportunistic reasons.
  该党很多成员只是抱着投机取巧的心理才加入其中的。
  
• His move was characteristically opportunistic and had fatal consequences.
  他这个行动带有铤而走险的味道,其后果是悲惨的.
  
• "They are necessarily opportunistic," he said.
  来自THETIMES
• He was the least opportunistic person I've ever known.
  来自NEWYORKER