Today some mobile phones can take pictures(like)a camera.Now people often take photos(with)their
问题描述：
Today some mobile phones can take pictures(like)a camera.Now people often take photos(with)their
mobile phones.为什么不填as,by?
答
like prep.像……一样
as prep.作为
by + doing 通过做……
with + n.用……
所以,不能用as,by.