一、用thoughtful来造句，单词的意思是沉思的？
They sat in thoughtful silence.他们坐着，沉思不语。
He looked thoughtful。他一脸沉思的神情
二、5个伴随状语的英语句子？
用作伴随状语有：现在分词，过去分词，独立主格结构，with 的复合结构，介词短语等。例如：
1.He sat at the table, lost in thought.
他坐在桌边，陷入沉思。
2. I wrote him a letter, telling him the truth.
我给他写了一封信，告诉他真实情况。
3. The young man was walking in the park,with a book in his hand.
年轻人在公园里散步，手里拿着一本书。
4. The guard stood at the gate, gun in hand.
警卫在大门口站岗，手里拿着枪。
5. The boy sent home, full of fear.
小孩回家，心里充满着恐惧。
三、一个人独坐沉思英文句子？
A man sits alone in meditation.
