船长与他的船员总保持一段距离。
他总保持他的物品井井有条。
没有楼梯是行不通的,因为重力总保持这个方向。
But you cannot simply walk here because gravity is always in this direction.
and push myself a little bit further than I went the day before and try to get in shape.
并且让自己总比头一天跑得远些,并且努力保持身材。
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