Even if a bird's body isn't that skinny, maybe a pointy egg really does keep it from rolling off the edge of a cliff, or make it easier for the parents keep it warm.

即使某只鸟的身体不是那么瘦，也许尖尖的蛋确实可以防止它从悬崖边缘滚落，或者让父母更容易给它保暖。

Stand of top of ski, watch the rolling edge over and let the ski come around naturally, using a round " s" shape turn to control your speed , and keeping practicing on round shape you comfortable along.

站在滑雪板上，仔细观察运动中的板刃，让它自然形成形状。使用一个圆形S形弯去控制你的速度。不断练习圆形弯，那种你转的很舒服的弯。