It's better to do sth rather than do sth 这句子对,rather than意思是"而不信闭是"
It's important to do sth rather than do sth 也对
It's better to do sth than to do sth .中 than 后面 不省略to 因为t's better to do sth than to do sth=To do sth is better to do sth
To do sth is better than to do sth.此句,正确 than只能接to do 表比较,并且to 不能省略
It's important to do sth rather than do sth.中滑虚裂不能誉搏是 than to do sth