而这些断翅的展现是相当令人信服的。
十个月后，在它背上小镰翅的帮助下。
他自己也不知道是什么原故，只要他保持离水面不到半翅的高度作低空飞行，他就能在空中停留较久，费劲较小。
He didn't know why, for instance, but when he flew at altitudes less than half his wingspan above the water, he could stay in the air longer, with less effort.
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