?
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。

upper floor

un. 上层楼面;楼上

1. They were on the upper floor of the building.
他们在该建筑物的上层。
2. There is a good restaurant on the upper floor.
楼上有一家很好的餐馆。
3. Led his squad off to the upper floor.
带着他的小队到楼上去。
4. All students have access to the Writing Center on the upper floor of this building.
所有学生都可以进入这栋楼上层的写作中心。
5. Mail that was already processed in New Orleans facilities was moved to an upper floor so it would be protected from water damage.
经过新奥尔良设备处理的邮件被转移到上层,这样可以避免水对邮件造成损坏。