He rubbed his chin thoughtfully

• 他抚摩著下巴；陷入沉思

He rubbed his chin thoughtfully的用法和样例：

例句

1. He rubbed his chin thoughtfully.
   他抚摩著下巴，陷入沉思。
2. He rubbed his chin thoughtfully.
   他抚摩著下巴，陷入沉思。
3. When he left, she sank into melancholy.
   当他走后，她陷入沉思。