care的形容词是careful，含义是：仔细的，小心的，认真的careless，含义是：粗心的；无忧无虑的；淡漠的。
careful基本字义
英[ˈkeəfl] 美['kɛrfl]
adj.仔细的，小心的
双语例句
1.Careful, it'll break!
小心，它会碎的！
2.Careful, you'll break it!
小心，你会弄坏它的！
3.Be careful − it's slippery.
小心路滑。
careless基本字义
英['keələs] 美['kɛrləs]
adj.粗心的；疏忽的；草率的；无忧无虑的；漫不经心的
双语例句
1.Careless scribes corrupted the text.
马虎的抄写员把这篇文章抄走样了。
2.She was bending over the bowl, careless of her hair.
她俯身在碗上，没顾及自己的头发。
3.I had been careless and let him wander off on his own.
我不小心让他自己走失了。
