Usually, you would just sit listlessly, too hot to do anything else.

通常，你只会无精打采地坐着，热得干不了别的事情。

《柯林斯英汉双解大词典》

The teacher nods and puts Vishal back on the floor, where he sits listlessly before a jigsaw puzzle.

老师点了点头，把 Vishal 放回地上，他无精打采地坐在一副七巧板前。

youdao

Huck was sitting on the gunwale of a flatboat, listlessly dangling his feet in the water and looking very melancholy.

哈克坐在一只平底船的船舷上，两只脚没精打采地泡在水里，看上去很忧郁。

youdao

On the other end of the floor, the Nets stood listlessly, not talking, distant.

WSJ: Brooklyn Nets: Come On, Brooklyn: Turn On the Lights

In one hand (a hand resting listlessly against his right temple) he is holding a cigarette.

NEWYORKER: Labyrinth

For almost 30 years, the Brewers have lingered listlessly in both the American and National Leagues.

FORBES: Great Expectations In The Brew City