It's bad/good (for sb.)to do sth.造句（注中文）~\(≥▽≤)/~

It's bad/good (for sb.)to do sth.造句（注中文）~\(≥▽≤)/~
It's bad/good (for sb.)to do sth.造句（注中文）~\(≥▽≤)/~

It's bad/good (for sb.)to do sth.造句（注中文）~\(≥▽≤)/~
It's bad for people to smoke.(吸烟对人有害)
It's good for people to do exercise.(锻炼对人有好处)