opportunist

1. ADJ If you describe someone as opportunist, you are critical of them because they take advantage of any situation in order to gain money or power, without considering whether their actions are right or wrong. 机会主义的[表不满]

...corrupt and opportunist politicians. …腐败、投机的政客们。

2. N-COUNT An opportunist is someone who is opportunist. 机会主义者

Like most successful politicians, Sinclair was an opportunist. 和大多数成功的政客一样，辛克莱也是个机会主义者。