过去式
buy many kind of stuff.
buy all kinds of stuff.
buy a lot of stuff.
现代式
buying many kinds of stuff.
buying all kinds of stuff
buy a lot of stuff.
过去式
i bought many kind of stuff.
i bought all kinds of stuff.
i bought a lot of stuff.
stuff＝东西
还有其他的单词也等于东西
goods
things
products
packages
这些都可以..
求采纳..还有问题追问我