?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

playfulness
IELTS

英 / ˈpleɪflnəs /
美 / ˈpleɪflnəs /
n. 嬉戏

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. Show the playfulness of the site.
显示出网站的活泼气氛。
5. Playfulness, excitement, she loves it.
活泼俏皮,兴奋感,都是她所爱。