N → another name for doggy paddle
Subconsciously I began to take to the most basic stroke of swimming — the dog paddle.
我下意识地做出了人类最原始的游泳动作——狗扒。
The first clue is that the density of the human body is similar to the density of water, and what keeps us floating–other than the dog paddle–is the air in our lungs.
第一个线索是：人的身体密度近似于水的。 人能浮于水面的关键在于肺部的空气而不是靠在水中扑腾。
I could dog-paddle faster than the boat did.
我狗刨式都能游得比这艘船快。
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