They were proud that they had built the house themselves.这里的themselves为什么前面不加by 这样说得通吗?
问题描述：
They were proud that they had built the house themselves.这里的themselves为什么前面不加by 这样说得通吗?
答
要不要by 都行,句子意思一样.不加by ,themselves作同位语,加by ,by themselves在句子里作状语
by oneself 独自地,单独地
还可以说成
They were proud that they themselves had built the house