I would advise you to take an umbrella with you, it seemed to be rain.
我会建议你随身带把伞，貌似要下雨了。
I would advise you to take your colleague's suggestions.
我会建议你接受你同事的意见。
I would advise you to be polite when talk with old man.
我会建议你和老人交谈的时候要有礼貌。