?不能

she can swim across the pool and even float on her back ? 她可以在游泳池游泳,甚至在她背浮 not be able to ? 不能 i send my friend to pakistan ? 我送我的朋友，巴基斯坦 ..

?不可以

And things to be found ? 找到的东西 not be able to ? 不可以 A sound system of risk management and internal control. ? 健全风险管理和内部控制制度。