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。
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)。
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)。
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