这个男孩五岁就会骑自行车了译英两种
问题描述:
这个男孩五岁就会骑自行车了译英
两种
答
This boy could ride a bike at the age of five.
This boy could ride a bike when he was five years old
could可改为was able to
答
The boy could ride a bike,when he was five years old.
答
This boy is able to ride a bike since he was five.
答
The boy learned to ride a bike when he was five.