Backtracking
[计] 回溯法
🗣️ 情景例句
Window-shopping is some girls'favorite pastime.
逛街是许多女孩消磨时间的首选方式。
Great barkers are no biters.
吠犬不咬。
In this way Native Americans were forced onto poor land that the settlers did not want.
就这样，美洲土著人被赶到殖民者所不要的贫瘠的土地上去了。