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1·Many species have evolved clear signals to delineate playfulness.

很多动物进化出了明确表述玩耍的信号。

2·She was pleased by the few words I was able to say in her language, although they were mostly numbers, and she saw that I understood something about the soft playfulness of bargaining.

她对我能用她的语言说几句话感到高兴，尽管这些话大多是数字，并且她看出我懂得一些讨价还价时温和的玩闹。

3·The use of a spandrel glass facade adds rhythm and a sense of playfulness.

拱肩玻璃幕墙的使用，增加了一丝韵律和调皮。

4·Playfulness and light-heartedness can make intimate moments enjoyable and relaxing.

有趣、轻松的氛围会让两个人在亲密时刻更加放松和享受。

5·Show the playfulness of the site.

显示出网站的活泼气氛。

6·Playfulness, excitement, she loves it.

活泼俏皮，兴奋感，都是她所爱。

7·Stretch the moment of magic and playfulness.

延长那充满魔力与乐趣的时刻。

8·He feigned injury and I gigged at his playfulness.

他假装受伤，我喜欢他的诙谐。

9·It will add some playfulness to your whole outlook.

这会为你的整体面貌增添些许趣味性。

10·The force of photography also lies in its playfulness.

摄影的力量还在于它的趣味性。