持续了多久how: adv. 1.怎样,怎么(=in what manner ...long: adj. (longer longest ) 1.长,长 ...it: it2 pron. (sing. Nom. ...last: adj. (opp. first) 1.最后的,末尾的; ...how long did the party last: 晚会持续了多长时间下载手机词典可随时随地查词查翻译