ask sb (about) sth about 是不是 可有可无?

ask sb.about sth. ask sb.about sth. ask sb.about sth.句子成分 ask sb sth和 ask sb about sth区别 ask sb (about) sth about 是不是 可有可无? ask sb sth 意思? / ask sb for sth 意思?2.有没有 ask sb about sth? see sb doing sth和ask sb for sth ask sb about sth造句 用ask sb about sth造句、 关于ask的用法ask sb about sth和ask sb sth 有什么区别? ask to do sth ask（sb）for sth ask sb about sth 这三个ask to do sthask（sb）for sthask sb about sth ask sb to do ask about+doingask sb about sth 区别 talk to sb ask sth about sth show sth to sb造句 ask sth to sb ask sb sth ask sb about sth造句!造3个 ask sb about sth造句只要2个就好 ask sb. about sth.请翻译并造句,谢谢! ask sb 什么 sth. ask sb for sth