convertible
名词 convertible:
a car that has top that can be folded or removed
a corporate security (usually bonds or preferred stock) that can be exchanged for another form of security (usually common stock)
a sofa that can be converted into a bed
同义词:sofa bed
形容词 convertible:
capable of being exchanged for or replaced by something of equal value
同义词:exchangeable
designed to be changed from one use or form to another
capable of being changed in substance as if by alchemy