aiding planning materials flow

例句：

1. 1.He offered to help me with my homework.
   他主动帮我做作业。
2. 2. The doctor aided the injured soldier in his recovery.
   医生帮助受伤的士兵恢复。
3. 3. They aided the refugees in their search for shelter.
   他们帮助难民寻找庇护所。