寡头垄断

guǎ tóu lǒng duàn shì chǎng

寡头垄断市场

oligopoly market

dà gōng sī de shěn jì bèi guǎ tóu lǒng duàn suǒ zhǔ dǎo zhè zhǒng jú miàn chōng mǎn le wēi xiǎn

大公司的审计被寡头垄断所主导，这种局面充满了危险。

The auditing of large companies is dominated by an oligopoly with all the dangers that go with that.