hard to do sth对吗

hard to do sth对吗 hard to do sth 是hard to do sth 还是 hard doing sth spend sth to do sth对吗 hard to do sth.还是 hard doing sth.Could you please do sth. suggest to sb to do sth对吗? let sb to do sth 对吗?为什么 follow sb to do sth对吗 请问must to do sth?句型对吗? should sth to do 这句话对吗 why not to do sth对吗?waiting Sth,causing the problem hard to settle语法对吗? text sb about sth text sb to do sth对吗 it is hard to+Ving还是to do sth 英语翻译It's hard for sb.to do sth.快 用it is hard work to do sth.造句 急需 be hard for sb to do sth是什么意思? it is probably hard for sb to do sth