the doctor did what he could to save it.为什么不是what he could do.还有to,can后能加to 请帮帮

问题描述:

the doctor did what he could to save it.为什么不是what he could do.还有to,can后能加to 请帮帮

医生做了他所能做的一切去救它.
TO表示目的(去救它),直接用原型就不包含这个意思了.
可以