airplane with two full wings, one above the other, 1874, as a theoretical notion; first attested 1908 in reference to the real thing; from bi- + plane (n.1). So called from the two "planes" of the double wings.
实用例句
1. He arrives in his biplane and crash lands it in a tree.
他驾驶双翼飞机到达，在一棵树上紧急降落。
来自柯林斯例句
2. Early on 14 November Ely Curtiss's pusher biplane was hoisted aboard.
十一月十四日晨,伊利的柯蒂斯推进式双翼机被吊上船.
来自辞典例句
3. Forever may fly by oneself biplane wing soaring bird high.
