Backtracking
[计] 回溯法
🗣️ 情景例句
and a good night's sleep.
睡一个好觉。
In time of peace prepare for war.
居安思危。
one, to my certain knowledge, spent nine months on a novel about Kashmir,
据我所知，有位作家花了9个月的时间写了一部有关克什米尔的小说，