Require performance of an obligation
[经] 要求履行义务
🧩 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];
an
[æn]
art. 一（在元音字母前代替不定代词a）;一任一某一;一个;
🗣️ 情景例句
Good-bye. Thanks.
再见。谢谢。
Deep rivers move in silence, shallow brooks are noisy.
深水静静流，浅溪潺潺流。
They had rushed up to her while she was having a picnic at the edge of a forest with her children and tried to steal her handbag.
刚才，当她和孩子们正在森林边上野餐的时候，这两个人冲到她跟前，企图抢走她的手提包。