The child's insouciance is my biggest pursuit.

孩子的无忧无虑就是我最大的追求。

The senator's insouciance irritated everyone.

议员的漫不经心激怒了所有人。

Sometimes I really envy children's insouciance.

有时候我真的很羡慕小孩子的无忧无虑。

She hid her worries behind an air of insouciance.

她掩饰着自己的烦恼，表现得无忧无虑。

He replied with characteristic insouciance: "So what?"

他用特有的漫不经心的口吻答道：“那又怎么样？”

The very direness of this possibility has produced a certain insouciance.

这种可能性的可怕已经产生了某种漠不关心。

Insouciance seems less likely when the starting point is much higher debt.

可是当这十年一开始就有这么高的债务，投资人似乎比较不可能再如此漫不经心了。

Events have imbued the Japanese corporate warrior with a new insouciance.

当初日本公司的斗士已经变得满不在乎。