C1293 To Live and Die with the Warship

"Keep going." Qin Guan shouted.

At this time, they had been sailing underwater for half an hour. After hearing Qin Guan's order, Liu could not help but say, "How much longer? We don't have much electricity left."

In fact, it could sail underwater for six hours. The current power is still sufficient, but he can't say that..