安全ān quánsafe; secure; safety; security:安全转移 move to places of safety安全到达 arrive safely安全行车 safe driving交通安全 traffic safety保证安全生产 ensure safety in production他们安全地穿过了马路。 They crossed the road in safety.这些玩具对小孩安全吗? Are these toys safe for small children?