问题描述：
英文句子解析：in doing so they were lifting a rock only to drop on their own feet.
in doing so they were lifting a rock only to drop on their own feet.
他们这样做,只不过是搬起石头砸自己的脚
in doing so they were lifting a rock only to drop on their own feet.
他们这样做,只不过是搬起石头砸自己的脚
问题解答：
我来补答展开全文阅读