以前常常

1.
used to
人教版初三上学期英语单词_百度知道 ... burn n. 火 used to 过去经常,以前常常 be interesting in 对……感兴趣 ...
zhidao.baidu.com|Based on 113 pages
2.
used to do
中考英语习惯用语和固定搭配_惊逝水_新浪博客 ... on time 准时 used to do 过去经常,以前常常 out of 由…里面向外 ...
blog.sina.com.cn|Based on 10 pages

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard