be sure of 确信 例句:she looked over her shoulder to be sure of her footing.她扭头看了看后面以确认自已是否站稳了.be sure about 对.很有把握例句:you can be sure about their interest in it.你可以肯定他们对引很感兴趣. 20210311
be in 报错 执政;在家;到达;在…里面网络释义专业释义在家初中英语总复习之短语:[星光教育论坛] ...be injured 受伤 be in 在家 be in trouble遇到麻烦 ...基于84个网页-相关网页到达到达(be in), 此释义来源于网络辞典。基于56个网页- 相关网页 处在另四瑞兽 爰居 ...坐 [sit;h**e a seat]处在,处于 [be in;be ...
verb phrases 1. be able to do能够做 after paying great efforts, he ** able to speak engl**h fluently. 2. be about to do正要做 as i was about to say, you interrupted me. 3. add… to…把……加…… if you add 5 to 5, ...