1
a LAN
LAN 是可数名词，通常与 a 连用。
The office set up a LAN last month.
办公室上个月建立了一个局域网。
局域网
先理解核心含义，再看它在真实句子里的用法。
局域网
a local area network; a network connecting computers and other electronic office equipment within a limited area, such as an office, to share information and resources
The office set up a LAN last month.
办公室上个月建立了一个局域网。
缩写自 local area network
An in-person tournament that uses LAN.
局域网(本地计算机网络,尤指连接计算机、文字处理器等办公设备以形成办公通信系统)
a local computer network for communication between computers; especially a network connecting computers and word processors and other electronic office equipment to create a communication system between offices
Our office LAN connects all the computers, so we can easily share documents.
我们办公室的局域网连接着所有电脑，因此我们可以轻松共享文档。
The teacher used the school LAN to send the assignment to every student at once.
老师利用学校的局域网，把作业一次性发给每个学生。
Most small businesses use LANs to link their computers and share a single printer.
大多数小企业使用局域网来连接他们的电脑并共享一台打印机。
LAN 是可数名词，通常与 a 连用。
The office set up a LAN last month.
办公室上个月建立了一个局域网。
局域网有多个时用复数形式 LANs。
LANs are cheaper to install than wide area networks.
局域网比广域网安装成本低。
LAN 可作定语修饰名词，如 LAN connection、LAN cable。
LAN security is a growing concern.
局域网安全日益受到关注。
Not this
LAN connects computers in an office.
Use this
A LAN connects computers in an office.
LAN 是可数名词单数，指单个局域网时前面需要不定冠词 a；汉语没有冠词，所以学习者常漏掉 a。
Not this
There are three LAN in the building.
Use this
There are three LANs in the building.
LAN 是可数名词，复数要加 -s；汉语名词本身不区分单复数，所以学习者容易漏掉这个 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
局域网连接
The new printer works over the LAN connection.
新打印机通过局域网连接工作。
无线局域网
Most offices now rely on a wireless LAN.
大多数办公室现在依赖无线局域网。
连接到局域网
All computers in the lab connect to the LAN.
实验室里所有计算机都连接到局域网。
局域网端口
Plug the cable into the LAN port on the router.
把网线插入路由器的局域网端口。
管理局域网
He manages a LAN for a small publishing company.
他为一家小型出版公司管理局域网。
局域网访问权
Employees have LAN access from their desktops.
员工可以从自己的台式机访问局域网。
Use LAN naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
LAN 听起来像“栏”，想象一圈栅栏把几台电脑围成小局域网，栏内互联。
语域：neutral 常见场景：IT documentation、network administration、technical support LAN 多用于计算机网络相关的正式技术文档和专业交流中，在日常对话中也偶有出现，整体语气中性，不显得特别正式或随意。
下面这些单词都以 /æn/ 结尾，和 lan /læn/ 押韵。注意拼写相似的 lane /leɪn/ 和 land /lænd/ 发音不同。
Dictionary facts from ECDICT, WIKTIONARY.