secure
单词辨析：
指不会对身体造成伤害和损坏的；也指没有丢失、受伤等危险的，此时不能作定语。
We all wished her a safe journey.
我们都祝她一路平安。
It's not safe to go out alone at night.
夜晚一个人出门不安全。
You must keep these letters safe.
你一定要把这些信保管好。
指因受到保护而不会遭受损害、袭击等的，含可以不必担心或害怕的意味，常后接介词 against/from。
This is a secure hiding place.
这是一个安全的藏身之处。
She felt quite secure with her husband beside her.
丈夫在身边时，她感到很安全。
You are secure here.
你在这里很安全。
相关例句：
Britain is intensifying its efforts to secure the release of the hostages
英国正加紧努力确保人质的获释。
New technology should provide a secure firewall against hackers.
新技术应该能提供安全可靠的防火墙抵御黑客袭击。
The loan is secured against your home
这笔贷款以你的房子作为抵押。
The government must feel secure before it will be willing to make the concessions needed for peace.
政府只有有足够的把够了才会愿意为和平作出让步。
They secure their degrees by slogging through an intensive 11-month course
他们苦学了11个月的强化课程，拿到了学位。
Senior citizens long for a more predictable and secure future.
老年人渴望有一个更稳定、更可预见的未来。