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Gu Liangchuan took a deep breath. Right now, there was a lake in front of him. It was a very big lake at the top of the mountain, and his goal today was to reach the bottom of the lake.

"Did they build a laboratory here?" Gu Liangchuan quickly calmed himself down and asked.

"No, their laboratory is in the water. Those people are also working in the water." Toto shook his little head