| 释义 | 
		extemporizeextemporize /ɪkˈstɛmpəˌraɪz/ verb [intransitive] formal VERB TABLEextemporize |
 | Present | I, you, we, they | extemporize |   | he, she, it | extemporizes |  | Past | I, you, he, she, it, we, they | extemporized |  | Present perfect | I, you, we, they | have extemporized |   | he, she, it | has extemporized |  | Past perfect | I, you, he, she, it, we, they | had extemporized |  | Future | I, you, he, she, it, we, they | will extemporize |  | Future perfect | I, you, he, she, it, we, they | will have extemporized |  
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 | Present | I | am extemporizing |   | he, she, it | is extemporizing |   | you, we, they | are extemporizing |  | Past | I, he, she, it | was extemporizing |   | you, we, they | were extemporizing |  | Present perfect | I, you, we, they | have been extemporizing |   | he, she, it | has been extemporizing |  | Past perfect | I, you, he, she, it, we, they | had been extemporizing |  | Future | I, you, he, she, it, we, they | will be extemporizing |  | Future perfect | I, you, he, she, it, we, they | will have been extemporizing |  
     to speak without preparation, especially during a performance SYN ad-lib—extemporization /ɪkˌstɛmpərəˈzeɪʃən/ noun [countable, uncountable]  |