With a burst of adrenaline, Endris thrust his head above the surface, gasping for air.
随着肾上腺素的爆发，Endris努力使头浮出水面，呼吸空气。
The back of your head should barely break the surface of the water.
你的头的背面几乎不能打破水的表面。
The central meaning Shared by these nouns is. The front surface of the head.
这些名词所共有的中心意思是。头部的前表面。
Try to keep your head and torso right at the surface, with very little up-and-down-motion.
尝试保持你的头和躯干正好在水面下，只有很小的起伏波动。
Try to keep your head and torso right at the surface, with very little up-and-down-motion.
尝试保持你的头和躯干正好在水面下，只有很小的起伏波动。
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