Since Roman times,ostrich have been said to be so stupid that they react to danger by···
问题描述：
Since Roman times,ostrich have been said to be so stupid that they react to danger by···
have been done 是完成时态的被动语态?that引导什么从句?为什么用that
答
这是一个so...that 句型.那么的...以至于
翻译就是：自从罗马时代,鸵鸟就被说成是如此的傻,以至于它们面对危险的反应是（把脑袋藏进沙子里）.你怎么知道后面是把脑袋塞在啥子里？- -。。。。那that fact dose not begin to define the enormous debt that i owe my father呢？哈哈，这是个典故。 后面这句是： 那个事实并没有开始确定我欠我父亲的巨额债务。