?
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。

fifths
初中

英 / fɪfθs /
美 / fɪfθs /
n. 第五;五分之几;五等品(fifth 的复数)

1. She cut the cake into fifths.
她把蛋糕切成五块。
2. About three fifths of American families don't watch TV whey they have dinner.
大约有五分之三的美国家庭吃饭时不看电视。
3. The ivory Buddha carved by Shen Weizhong is the world's smallest piece of sculpture, its size being just four-fifths of a grain of rice.
沈为众雕刻的象牙佛像是世界上最小的雕刻,它只有一粒米的五分之四大。
4. The three-fifths formula handed Jefferson his narrow victory in the presidential election of 1800 by inflating the votes of the southern states in the Electoral College.
这一“五分之三准则”使南方各州在选举团中的选票膨胀,从而使杰弗逊在1800年的总统选举中险胜。
5. Since nitrogen is four fifths of the air we breathe, they are surprisingly optimistic about raising the temperature on Mars and believe it could be done in hundred years.
由于氮占我们呼吸的空气的五分之四,他们对提高火星的温度持惊人的乐观态度,相信这可以在一百年内完成。