?
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。

cover-up

英 / ˈkʌvər ʌp /
美 / ˈkʌvər ʌp /
n. 掩盖;掩饰

复数:cover-ups

1. Government sources denied there had been a deliberate cover-up.
政府方面否认了有故意掩饰的行为。
2. Senior government figures must have acquiesced in the cover-up.
政府高级官员必然已经默许掩盖真相。
3. She denied (that) there had been any cover-up.
她否认有任何隐瞒。
4. Several officers were complicit in the cover-up.
几名军官串通一气隐瞒真相。
5. General Schwarzkopf denied there'd been any cover-up.
施瓦茨科夫将军否认有任何遮掩。