①have a decision to do sth.=decide to do sth.②

①have a decision to do sth.=decide to do sth.② ①have a decision to do sth.=decide to do sth.②-what did you 比如decide to do sth.=make a decision to do sth.决定做某事 make a decision to do sth和decide to do sth decide to do sth decide to do sth. decide to do sth.与make decision to do sth.有什么区别【急】 make a decision to do sth decide not to do sth make a decision to do...=decide to do... decide doing sth.与decide to do sth.的区别? 请问是decide to do sth 还是 decide doing sth?