decide to do=?

decide to do=? decide to do sth decide to do sth. make a decision to do...=decide to do... decide+doing or decide+to do decide to do 和decide on造句 decide not to do sth mean to do/decide to do 区别 decide to do n.to do decide to do 与 decide on 用法区别? decide doing sth.与decide to do sth.的区别? 请问是decide to do sth 还是 decide doing sth?