?
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。

short period

un. 短期

1. There was a short period of uneasy calm after the riot.
动乱之后是令人不安的短暂平静。
2. I have never seen such a seismic shift in public opinion in such a short period of time.
我从来没有见过公众舆论在这么短的时间内发生如此突然的转变。
3. Ebola was so deadly and killed so quickly that within a short period of time, there was no one around to infect.
埃博拉病毒十分致命,致死速度极快,以至于在短时间内,周围没有健康的人可以再被病毒感染。
4. During this relatively short period of time, greater changes in people's living conditions have occurred than in the thousands of years which preceded.
在这相对短暂的时间里,人们的生活条件发生了比之前几千年更大的变化。
5. A flash mob is a group of people who come together suddenly in a public place, do something unusual for a short period of time, and then quickly break up.
快闪族,是指一群人突然在公共场所聚集,在短时间内做一些不寻常的事情,然后迅速散开。