public security sector的用法和樣例：
例句
- He wrote a letter to the Public Security Organ to disclose the mayor's scandal of taking bribes.
他寫(xiě)了一封信給公安部門(mén)來(lái)揭露這個(gè)市長(cháng)的受賄丑聞。 - Certificates for control of guns shall be made by the public security department under the State Council.
第四十九條槍支管理證件由國務(wù)院公安部門(mén)制定。
