malfeasance competition behavior 基本例句 不正当竞争 Monopoly and unfair competition shall be prohibited in advertising operations.在广告经营活动中,禁止垄断和不正当竞争行为。 A securities company may not canvass any securities underwriting business by any unjust competition means.证券公司不得以不正当竞争手段招揽证券承销业务。