Security of tenure
[经] 使用期保障
🧩 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];
🗣️ 情景例句
He's a nice man.
他是个好人。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
It extends to a depth of 3,723 feet.
深达3，723英尺。