opportunist

n.

机会主义者；投机取巧者；

复数：opportunists

1. His Russian friend was not an opportunist.
   他的这个苏联朋友不是一个机会主义者。
2. There were many opportunists and few men of principle.
   机会主义者多,坚持原则的人则少。
3. Your goal is to create a lasting impression,not as an opportunist.
   你的目的是要给对方留下一个深刻印象，但不要让其认为你是一个投机者。

1. Smith marked his debut match with an opportunist goal.
   史密斯首次上场比赛就打进一个机会球。
2. Whoever overlooks or belittles this point will commit "Left"opportunist mistakes.
   谁要是忽视或轻视了这一点，谁就要犯“左”倾机会主义的错误。

Pseudomonas putida: a cosmopolitan opportunist par excellence
Management of opportunist mycobacterial infections: Joint Tuberculosis Committee guidelines 1999
Stenotrophomonas maltophilia: an emerging opportunist human pathogen.
: changing clinical spectrum of a therapy-refractory opportunist
Immune evasion by cytomegalovirus--survival strategies of a highly adapted opportunist.
Pseudomonas cepacia colonization among patients with cystic fibrosis. A new opportunist
Establishment of Pseudomonas aeruginosa infection: lessons from a versatile opportunist.
Scedosporium apiospermum: changing clinical spectrum of a therapy-refractory opportunist
Management of opportunist mycobacterial infections: Joint Tuberculosis Committee Guidelines 1999. Subcommittee of the Joint Tubercul...
Crowe S, Carlin JB, Steward KI, Lucas CR, Hoy JF: Predictive value of CD4 lymphocyte numbers for the development of opportunistic in...