外設的用法和樣例：
例句
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局域網(wǎng)就是在一個(gè)有限的地域范圍內，典型的如在辦公大樓或校園中，將計算機及相關(guān)外設（如打印機）用電纜進(jìn)行物理連結而組成的一個(gè)系統。
A LAN is a system of computers and associated peripherals such as Printers that are physically connected by cable within a limited geographical area-typically in an office building or on a college campus.
