Nancy, who had been thoughtful for some time, suddenly spoke.

南希沉思半晌后，突然开口说话。

《柯林斯英汉双解大词典》

She was thoughtful for a while.

她认真思考了一会儿。

youdao

Thoughtful: My mum is always thoughtful for writing stories on the computers.

善于思考：妈妈常在电脑前构思故事。

youdao

She was well known for her powerful, thoughtful speeches.

VOA: special.2010.05.09

He looked thoughtful for a moment.

NPR: Waiting and Dreading: Families in War Time

The XPS brand has a distinguished heritage of delivering the latest technology and thoughtful design for performance and craftsmanship without compromise.

ENGADGET: Dell announces XPS One 27 AIO running W8 on a touch display

Not long ago in this newspaper, the Pulitzer Prize-winning author Buzz Bissinger outlined a thoughtful case for why college football should be banned altogether.

WSJ: What Penn State Should Tear Down