so that和too to的用法与区别

Question

请简单的说

Answer 1

so that是如此,too to是太...不能

Answer 2

so + ad/ adj + that + 句子

too + adj/ adv + to do

so that如此 以至于……
too to太……而不能……

Answer 3

so + ad/ adj + that + 句子

too + adj/ adv + to do

Answer 4

He's so young that he can't join the army.
He's too young to join the army.
再补充一句
He isn't old enough to join the army.