Definition
Used to advise someone to be more cautious or careful.
小心点
Have a care when you're walking on the icy surface.
在结冰的地面上行走时要小心。
Have a care when crossing the street, that road is very busy.
过马路时要小心，那条路很繁忙。
Have a care in dealing with this issue, it's very complex.
处理这个问题时要小心，它非常复杂。