be firm in英 [bi: fə:m in] 美 [bi fɚm ɪn] ...
be focused on
be fond of英 [bi: fɒnd ɔv] 美 [bi fɑːnd ʌv] ...
be fit for英 [bi: fit fɔ:] 美 [bi fɪt fɔr] ...
be finished with
be free英 [bi: fri:] 美 [bi fri] 释义没事儿;...
be for英 [bi: fɔ:] 美 [bi fɔr] 释义拥护,受责备...
be forced to英 [bi: fɔ:st tu:] 美 [bi fɔrst tu] ...
be formed from
be foreign to英 [bi: ˈfɔrin tu:] 美 [bi ˈfɔrɪn tu] ...
be free with英 [bi: fri: wið] 美 [bi fri wɪð] ...
be free to
be free of英 [bi: fri: ɔv] 美 [bi fri ʌv] ...
be free of charge
be free from英 [bi: fri: frɔm] 美 [bi fri frʌm] ...
be friendly with英 [bi: ˈfrendli wið] 美 [bi ˈfrɛndli wɪð]
be full of英 [bi: ful ɔv] 美 [bi fʊl ʌv] ...
be friends with v.与…交友,与…友好,跟…做朋友;交朋友...
be from英 [bi: frɔm] 美 [bi frʌm] 释义来自于...
be friendly to英 [bi: ˈfrendli tu:] 美 [bi ˈfrɛndli tu] ...