Sam looked as if he didn't have a care in the world.

萨姆看上去好像什么事都不操心似的。

《牛津词典》

Friends, have a care, have mercy.

朋友们，注意，应当有同情心。

youdao

He didn't have a care in the world as he waddled down the street.

他摇摇摆摆走过大街的样子好像对这个世界毫无牵挂。

youdao

Republicans have promised to make the health care reform law a major issue in mid-term Congressional elections in November.

VOA: special.2010.03.27

We're glad you spent this time with us, and we hope you have a blessed and peaceful day. Take care.

很开心你们能和我们一起度过这段时光,希望你们能度过一个幸福而平和的一天，保重。

普林斯顿公开课 - 人性课程节选

You don't have to declare a special variable for it if you don't care about its actual value.

你并不需要为它声明一个特定的变量,如果你不关心它的实际值。

哈佛公开课 - 计算机科学课程节选

They could have been any happy couple in any part of the world - he did not seem to have a care.

BBC: man Robin Chipperfield on Carl Froch-Watch

Do you guys not -- the House Republicans yesterday responded to your comment saying that they didn't have a health care plan saying, hey, no, we have a health care plan.

WHITEHOUSE: Press Briefing

Add on a luxurious room at the Lodge, or one of its spacious condos or villas for your entire group, and you will not have a care in the world from the moment you arrive until you leave.

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