Snas
(SNA 的復數) [計] 系統網絡體系結構
??? 情景例句
I applied for a job as a lifeguard at the community pool.
我申請了社區游泳池的救生員工作。
I haven't heard from him for a long time.
我很久沒有收到他的信了。
Maybe we had better do that.
看來就這么辦吧。