?
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。

turn upside down
四级

v. 上下颠倒

1. Every pill made my insides turn upside down.
每片药都使我的胃翻江倒海。
2. Close your eyes, hold your ears, then turn upside down, and drink!
闭上眼睛,攥住耳朵,躺在地上,把水喝掉!
3. He watches as the cars twist and turn upside down. He wishes he were brave enough to go on it.
他们看着飞车天旋地转,忽上忽下,很希望自己胆子够大,敢去试一试。
4. Another idea is that the earth will turn upside down. So the North Pole will become the South Pole.
另外一个观点认为,地球会上下颠倒,北极会变成南极。
5. Based on interviews with the surviving crew member, the ship was hit by a huge wave which caused it to turn upside down.
“根据采访获救的船员说,这艘渡轮在海上遭遇巨浪,穿被完全打翻”。