第三者

1. third party (to a dispute )

♦ 这件事的是非曲折, 可向~了解。 Ask a third party for the rights and wrongs of the case.

2. person having an affair with either the husband or the wife; third party

♦ 他的悲剧是由~的插足造成的。 His tragedy was caused by the involvement of a third party in his family life.