a bird that balance on the edge of water and repeatedly dunked its head in the water.用的是什么语法
问题描述：
a bird that balance on the edge of water and repeatedly dunked its head in the water.用的是什么语法
答
a bird that （balance on the edge of water and repeatedly dunked its head in the water） 这个句子没有头 只能说括号里的短语是来形容a bird 可能是宾语从句 可能是主语从句