v. (使)上下左右移动( flap的现在分词 );轻拍;焦急,焦虑;振(翅)
网络 翻动; 摆动; 扑棱
The gulls flew off, wings flapping.
海鸥扑打着双翅飞走了。
As feathers became larger over time, flapping flight evolved and birds finally became fully air-borne.
随着时间的推移,羽毛变得越来越大,扑翼飞行逐渐发展,鸟类最终完全可以在空中飞行。
She walked up and down, flapping her arms to keep warm.
她来回走动,挥动着双臂使身体暖和起来。
He tried to tuck his flapping shirt inside his trousers.
他试图把飘动的衬衫塞进他的裤子里。
The eagle can soar without flapping their wings.
老鹰无需振翼就能翱翔。