it was hard to do与it was hard doing的区别

it was hard to do与it was hard doing的区别 why it is so hard to do find it hard to do 同义词 think it hard to do 和 i think it's hard to do 有什么区别 do it the hard it is hard to+Ving还是to do sth R :It's easy to say,but hard to do. it's hard to It hard to it hard to say it aidnot hard to It is hard to it was hardly hard work It was raining hard 是什么意思 it was raining really hard 英语翻译It's hard for sb.to do sth.快 you are try very hard not to do it It is very_____(hard) for you to do that.