lasciviously（副词）：淫荡地；好色地；带有强烈性挑逗意味地。常用于描述言行、目光或举止带有明显的性欲或不雅的挑逗色彩。（也可更广义地指“肉欲地”，语气通常偏负面或批评。）
/ lsvisli /
He smiled lasciviously at the waitress.
他色眯眯地对女服务员笑了笑。
The novel portrays a man who speaks politely in public but behaves lasciviously in private, revealing his hypocrisy.
小说刻画了一个人在公众场合彬彬有礼、私下却举止淫荡的人物，暴露出他的虚伪。
来自 lascivious（淫荡的、好色的）+ 副词后缀 -ly。lascivious 源于拉丁语 lascivus，意为“放纵的、轻佻的、好色的”，后来进入英语，语义逐渐固定为带有“性挑逗/肉欲”的贬义色彩。
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