watch dog 监视者；监督网站；监督组织

【例句】
But to antitrust watchdogs, customer convenience is often less important than preserving a competitive landscape.
不过，对于反垄断监管机构来说，客户便利的重要性往往不如维护一个竞争的格局。

An important job of the board is to act as a moral watchdogs to keep the company in line.
董事会的一项重要工作是充当道德监督机构，使公司保持一致。