He sighed deeply at the thought.

想到这里，他深深叹了口气。

《牛津词典》

He sighed, turning away and surveying the sea.

他叹了口气，转过身去，眺望着大海。

《柯林斯英汉双解大词典》

youdao

He sighed once, satisfyingly, and headed out of the room and up the front stairs.

NEWYORKER: Great Experiment

Sometimes he sighed or made a tense smile or waggled his eyebrows as he glanced at moderator Bob Schieffer of CBS News.

NPR: The Hatchet And The Scalpel: A Debate Parable

"One or two raised their hands, " he sighed.

WSJ: Demonstration Against Sequestration Has Reasons, but Few Rhymes