Student submariners gather at the Naval Surface Warfare Center in Maryland to compete in a race that tests their engineering skills-and ability to pedal under water.
The accelerator pedal to step down slowly. Do not go to recovery, as long as keeps uniform through the water surface, won't cause unnecessary damage of vehicles.
油门踏板要慢慢踏下去，不要往回收，只要保持匀速通过积水路面，就不会对车辆造成不必要的损坏。
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Moreover Anti slipway, are not stable on sand, because it discusses plane surface exaggeratedly foot pedal.