She sat down with a plonk.

她扑通一声坐下来。

《牛津词典》

She sat down next to him on the sofa.

她在沙发上靠着他坐下来。

《柯林斯英汉双解大词典》

She sat down to conceal the fact that she was trembling.

她坐下来以不让人看出她在发抖。

《牛津词典》

He said that on that bus in nineteen fifty-five, "She sat down in order that we might stand up.

VOA: special.2009.03.08

At last,after two hours, she sat down and ate like other people.

VOA: special.2009.11.08

Next,she went to the shoe department, sat down and waited to be fitted.

VOA: special.2009.09.05

Later she sat down next to me on the concrete bench and read the telegram.

NPR: Excerpt: 'Esther's Inheritance'

Her legs were shaking as well, so she sat down in the low chair by her desk.

NEWYORKER: Luda and Milena

She sat down on a sofa and tucked her feet under her, leaning against a large pillow.

NEWYORKER: In Other Rooms, Other Wonders