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
Dad works hard, and he works late.
爸爸工作忙， 而且忙到很晚。
A thousand words will not leave so deep an impression as one deed.
千言万语不如一个行动。
Please! said the man from downstairs.
“劳驾！”楼下人说。