Backtracing
[计] 返回探索
🗣️ 情景例句
I have an idea that may solve the problem for him
我有个主意他也许能解决这个问题
What's your nationality?Are you a French?
你的国籍是什么？你是法国人？
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.
他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。