Maintenance of programs
[计] 程序维护
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 程序, 程序集；所有程式（program的复数）
🗣️ 情景例句
And plus, if you are not completely satisfied, you can return it to us.
并且，如果您不是百分百的满意，你可以将产品退还给我们。
Everything must have a beginning.
凡是都有起源。
So it became known as the gold rush.
成为广大为人知的“淘金热”。