He was leaning nonchalantly against the wall.

他漫不经心地斜倚着墙。

《牛津词典》

She raised her head and nonchalantly extended her hand, the palm up.

她抬起头，若无其事的摊开手掌，掌心向上。

youdao

Every few minutes, one stops chewing, looks around, and then nonchalantly continues eating as if nothing has happened.

每隔几分钟，一只山羊停止咀嚼，环顾四周，然后若无其事地继续吃草，似乎什么事情也没发生。

youdao

As he made his turn at first, Votto nudged Davis, who was nonchalantly standing near the bag, watching the play.

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Spitzer's charges paint a startling picture of Marsh brass nonchalantly ripping off clients as if it were business as usual.

FORBES: Companies, People, Ideas

It is empty except for the occasional homeless man or woman walking nonchalantly down the street, clutching everything they own.

BBC: Debt and defiance in bankrupt Stockton, California