The ____(三岁时)boy can climb that tall tree.一个空!一个空，连词不来
问题描述：
The ____(三岁时)boy can climb that tall tree.一个空!
一个空，连词不来
答
three -years-old
有不明白的地方再问哟，祝你学习进步，更上一层楼！ (*^__^*)
答
three-old
答
three-year-old