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1·The clown's facetiousness made everybody laugh.

小丑的滑稽动作使大家都笑了。

2·She frowned at his facetiousness - a pretty, adorable frown that made him put his arm around her kiss it away.

她见他在调皮，眉头便皱了起来——那样子又美丽又可爱，他不禁楼过她就亲吻，吻得她不再皱眉头。