| 释义 |
how often [英] [haʊ ˈɒfn] [美] [haʊ ˈɔfn] [短语] 多久 词频排名 7900/55435 学习人数 24 难度等级 1/10 认知比例 88.89% 例句 How often does he write to his mother? 他多久给他妈妈写一次信? How often do the buses run? 公共汽车每隔多久一趟? How often does this happen? 这种事情多长时间才发生一次? 助记 联想 how long 多久,多长时间。how often 多久一次,多长时间一次。how soon 多久之后
|