tread return

例句：

1. 1. The old man treads the path carefully.
   老人小心翼翼地走在小路上。
2. 2. She treads the path to the library every morning.
   她每天早晨都走向图书馆。
3. 3. He treads the path of knowledge with caution.
   他谨慎地走在知识的路径上。