“我们在论坛上说了很多关于安全的话题，”她补充说。
因为英国的天气是多变的，除此之外，这是一个比较安全的话题。
Because the weather in Englang is changebale and this topic is very safe .
安全是一个涉及面很广的话题，如认证、授权及信息传输等。
Security is a broad topic that includes authentication, authorization, and information transmission.
交谈的内容是有关自身安全和愉快的社交的话题。
Their conversation speaks of their own safe and comfortable society.
东北亚安全合作问题是一个老生常谈的话题。
The issue of Northeast Asian security cooperation is a commonplace subject.
英国这样的国家会选择安全低调、不会唐突伤及个人的话题，比如天气。
A country like Britain will choose a safe and personally unobtrusive topic-such as the weather.
安全是海上交通永恒的话题。
安全是海上交通永恒的话题。
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