beafraidof和beafraidtodo
beafraidtodo与beafraidofdoing的
be afraid of 与be afr
be afraid of be afraid to
be afraid to do sth和be afraid of doing sth的
be afraid to do和be afraid doing
beafraidof和beafraidfor的
be fraid of和be fraid to的
be afraid of与be afraid to do的
be afraid of与be afraid to的
