Spn
abbr. 业务提供者网络（Service Provider Network）；最短进程优先（Shortest Process Next）
🗣️ 情景例句
When was your last day off?
上次休假是在什么时候？
Still waters have deep bottoms.
静水常深。
When you have found a building in which to start your school.
你找到开办学校的楼房后