be of no effect[bi: ɔv nəu iˈfekt] v....
be of the essence
be of interest to
be of one mind英 [bi: ɔv wʌn maind] 美 [bi ʌv wʌn maɪnd] ...
be of prime importance英 [bi: ɔv praim imˈpɔ:təns] 美 [bi ʌv praɪm ɪmˈpɔrtns]
be of the opinion
be off英 [bi: ɔf] 美 [bi ɔf] 释义离开,取消;
be off duty英 [bi: ɔf ˈdju:ti] 美 [bi ɔf ˈduti] ...
be of the opinion that英 [bi: ɔv ðə əˈpinjən ðæt] 美 [bi ʌv ði əˈpɪnjən ðæt]
be off one's head[bi: ɔf wʌnz hed] v....
be off someone's head
be on英 [bi: ɔn] 美 [bi ɑn] 释义已经开始了,接受打...
be off to 释义离开去某地;
be on a rampage英 [bi: ɔn ei ˈræmˌpeɪdʒ] 美 [bi ɑn e ˈræmˌpedʒ]
be on a diet英 [bi: ɔn ə ˈdaiət] 美 [bi ɑn e ˈdaɪɪt] ...
be on duty英 [bi: ɔn ˈdju:ti] 美 [bi ɑn ˈduti] ...
be on edge英 [bi: ɔn edʒ] 美 [bi ɑn ɛdʒ] ...
be on fire英 [bi: ɔn ˈfaiə] 美 [bi ɑn faɪr] ...
be on good terms with 释义与…有交情;
be on cloud nine英 [bi: ɔn klaud naɪn] 美 [bi ɑn klaʊd naɪn]