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
the American Society for the Prevention of Cruelty to Animals.
美国禁止虐待动物协会。
As you travel westward,does the land get higher?
当你向西旅行，陆地变得更高？
He is now retiring from political life and has gone abroad.
他现在退出了政界，到国外去了。