几英里的游泳、数英里的跑步，湿沙中的滚打，一遍又一遍反反复复地考验着这些准海豹队员的体力与毅力。
Prospective SEALs are made to repeat multiple cycles of swimming several miles, running several miles, and rolling through sand.
这在任何时间和场合下可以反复使用-无论你在排队，或等候交通车辆，或在步行，跑步，跳舞甚至游泳时。
They can be repeated at any time - standing in line, waiting in traffic, walking, running, dancing or swimming.
这在任何时间和场合下可以反复使用-无论你在排队，或等候交通车辆，或在步行，跑步，跳舞甚至游泳时。
They can be repeated at any time - standing in line, waiting in traffic, walking, running, dancing or swimming.
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