tread void

例句：

1. 1. The old man treads the path carefully as he walks down the hill.
   老人小心翼翼地走在下山的路上。
2. 2. The children tread the grass carefully to avoid stepping on any small animals.
   孩子们小心翼翼地踩着草地，以免踩到小动物。
3. 3. The soldiers treaded the battlefield with caution, ready to face any danger.
   士兵们谨慎地走在战场，准备面对任何危险。