了解句型用法 I’m sure we can learn a lot from it拜托!在线等!

就是个宾语从句啊，前面主句，后面从句用陈述语序

I’m sure（that) we can learn a lot from it
宾语从句，that可加可不加
一般来说，作宾语的例如： whose who which...可以省略，但是做主语不可以省略。宾语一般指动词后面的词

在本句中 be sure + that从句,that可以省略
相关链接 be sure to do sth.
be sure about sth.

等同于 I’m sure that we can learn a lot from it.
宾语从句省去了that.