There is an underwater obstacle section. Participants have to hold their breath and make their way through the muddy, freezing water.
这里进行的是水下障碍物项目，挑战者必须屏住呼吸穿越冰冷的泥潭。
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Not only did she manage to brave the freezing conditions at the premiere of Aaron Johnson's latest film Kick-Ass, she managed to hold her own in the glamour stakes too.
The region is believed to hold up to 25 billion boe, or almost a fifth of remaining total reserves, but they lie in freezing waters more than 600 metres deep.