flutter
柯林斯词典
1. V-T/V-I If something thin or light flutters, or if you flutter it, it moves up and down or from side to side with a lot of quick, light movements. 拍动; 飘动
Her chiffon skirt was fluttering in the night breeze. 她的薄绸裙在晚风中飘动。
...a butterfly fluttering its wings. …一只拍动着翅膀的蝴蝶。
2. N-COUNT Flutter is also a noun. 飘动; 拍动
...a flutter of white cloth. …白布的飘动。
3. V-I If something light such as a small bird or a piece of paper flutters somewhere, it moves through the air with small quick movements. 飘舞; 振翅
The paper fluttered to the floor. 纸飘落到地板上。
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flutter /ˈflʌtə/ (fluttering,fluttered,flutters)
剑桥词典
flutter verb (MOVE)
[ 不及物动词：后面不接宾语的动词 or 及物动词：后面接宾语的动词 ]to make a series of quick delicate movements up and down or from side to side , or to cause something to do this
（使）飘动，挥动，颤动；拍（翅）；鼓（翼）
Brightly coloured flags were fluttering in the breeze . 鲜艳的彩旗在微风中飘扬。
Leaves fluttered down onto the path . 树叶飘落到小径上。
Butterflies fluttered about in the sunshine . 蝴蝶在阳光下翩翩飞舞。
A white bird poised on a wire and fluttered its wings . 一只白鸟立在电线上，扑打着翅膀。
flutter verb (HEART/STOMACH)
[ 不及物动词：后面不接宾语的动词 ]If your heart or stomach flutters, you feel slightly uncomfortable because you are excited or nervous .
（心）怦怦乱跳；（胃）颤动
Every time I think about my exams my stomach flutters! 每次一想到考试，我心里就不舒服！
习语
flutter your eyelashesmake sb's heart flutter 返回 flutter