The branches of the drooping willows were swaying lightly. 垂柳轻飘飘地摆动。
She tripped along joyfully as if treading on air. 她高兴地走着,脚底下轻飘飘的。
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)