Backtracking
[计] 回溯法
🗣️ 情景例句
Growing up without a mother is difficult.
在没有母亲的情况下长大不简单。
You dare?
你敢？
The doctors removed a section of the mummy and sent it to a laboratory.
医生们从木乃伊身上取下一个切片，送去化验。