Cheng Qingxue said uncertainly, this method is sometimes not very accurate, and if the cliff is too deep, it can't be measured at all.

Several other people also thought of this, but now there is no other way but to be a dead horse and a live horse doctor, they get out of the way and occupy a safer place, Cheng Qingxue and Jin Jianguo will operate this matter.

As the fire broke away from Cheng Qingxue's hand, everyone's hearts were also suspended, and they all concentrated on it, wanting to hear the sound under the cliff.

When Cheng Qingxue told them that this cliff was about a hundred meters deep, they were still silent, and at a height of ten meters, they ......

"Rebirth is Busy: I Open a Mine in Seventy" Chapter 408 Descending the Cliff is in the middle of the hand, please wait a moment,

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