A strongroom is a whole room built to keep valuable things safe — thick walls, a heavy door, usually a lock that only a few people can open. Banks have them; so do jewellers, museums, big hotels, and sometimes government offices holding documents.

A strongroom一個strongroom金庫 is a whole room built是整個為了 to keep valuable things safe保護貴重物品而蓋的房間——thick walls厚牆、a heavy door厚重的門、usually通常 a lock一個鎖 that only a few people can open只有少數人打得開。Banks銀行、jewellers珠寶商、museums博物館、big hotels大飯店，and sometimes government offices holding documents有時候還有保管文件的政府機關，都有have them這種房間。

Think of the room the robbers try to get into in a film: that is the strongroom.

Think of想想看 the room the robbers try to get into in a film電影裡搶匪想闖進去的那個房間：that is那就是 the strongroomstrongroom金庫。

It is British English mostly; Americans are more likely to say 'vault', and 'vault' is now common everywhere, including in British newspapers. If you want one word people will always understand, use vault.

It is它 British English mostly主要是英式英語的說法；Americans美國人 are more likely to say比較常說 'vault'「vault」，and而 'vault'「vault」 is now common everywhere現在到處都通用，including包括 in British newspapers在英國報紙裡也是。If you want如果你想要 one word people will always understand一個大家都聽得懂的字，use就用 vaultvault。

Strongroom is a little plainer and more everyday-British — a shop's back room where the good stock is locked up can be called the strongroom without sounding dramatic. One word, no space, and it does not take a hyphen in modern writing.

Strongroomstrongroom is a little plainer and more everyday-British比較樸實、比較是英式日常用語——a shop's back room一間店的後房 where the good stock is locked up鎖著好貨的地方 can be called也可以叫做 the strongroomstrongroom without sounding dramatic而不會顯得誇張。One word一個字、no space沒有空格，and而且 it does not take a hyphen in modern writing現代寫法也不加連字號。