sb is responsible for doing sth句子结构及语法?

doing sth is important for sb? 问个with sb.doing sth结构的句子 英语翻译sth is good for (doing)/sb sthdo well in (sth)/doing sth for sb doing sth是什么意思? there is no use for sb doing sth it is+adj.+for sb.+to do sth.结构的英语句子. thank sb for sth/doing sth造句 reward sb with sth for doing sth 关于thank sb for sth/doing sth sb.spends some time doing sth.it is+adj.+for sb.to do sth.it 有这个句型么?responsible to sb for sth 英语 句子语法结构the regions of the brain that are responsible for m