Backtracking
[计] 回溯法
🗣️ 情景例句
I love parades.
我爱看游行。
I want you to consider all pros and cons.
我希望你考虑一下所有的正反两方面的理由。
Bones were carved into needles and tools, and the teeth were used to make necklaces.
骨头则雕琢成针和工具，牙齿用来作项链。