He looked happy and carefree.是什么意思？

He looked happy and carefree.

他看起来轻松愉快。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

looked

v. 看，瞧( look的过去式和过去分词 )，注意，面向，寻找；

例句
He looked back at the abject, silent girl and repeated his question.
他转过头看着这个噤若寒蝉的女孩，又重复了一遍他的问题。

happy

adj. 幸福的，快乐的，巧妙的，〈口〉有点醉意的；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

carefree

adj. 无忧无虑的，快乐舒畅的，逍遥自在，宽畅，闲逸；

例句
They certainly gave the impression of a carefree couple who delighted in each other's company...
他们让人明显感觉是一对无牵无挂只求长相厮守的夫妻。