The air flowing over a bird's wings curls upwards behind the wingtips, a phenomenon known as upwash.

流过鸟翅膀的空气在翼尖后向上流动，这种现象被称为上升流。

The air flowing over a bird’s wings curls upwards behind the wingtips, a phenomenon known as upwash.

气流在划过鸟类双翼时会在其后面弯曲向上，这是一种叫上升流的现象。

Then without ceremony he hugged in his forewings, extended his short, angled wingtips, and plunged direcfly toward the sea.

跟着，他毫不犹豫地紧收前翼，展开短短的。 弯成角度的翼梢，径直向海面扑去。

He looked as if he would be more comfortable in jeans and work boots than pinstripes and wingtips (he was wearing an off-the-rack blue suit).

相对于西装笔挺，他更喜欢穿舒服的牛仔裤(他现在就穿着一件很普通的蓝色外套)。

We got seven cents a pair for selling regular shoes. If you sold the ‘turkeys’, the 11E wingtips with the purple toes and the white trim, you’d get a quarter or fifty cents.

卖普通的鞋每双有7美分提成，但是如果卖掉“火鸡鞋”--一种11英寸高有紫色的鞋带和白色装饰的漂亮鞋子，可以得到12.5美分的奖励，我常常将它们搬出来，套在一双臭臭的脚上，还赞美着：“你穿这些真合适。”