?
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。

under water
初中

na. 在水中;浸水;在水下

1. Extensive flooding in the country has delayed planting and many crops are still under water.
该国大范围的洪水已经延误了栽种,许多庄稼现在还泡在水中。
2. Because ducks stick their heads under water to feed and people duck their heads like ducks.
因为鸭子通常会将头埋到水里来喂食;而人们低头弯腰的样子和鸭子如出一辙。
3. Marine construction technology like this is very complex, somewhat analogous to trying to build a bridge under water.
像这样的海洋建筑技术非常复杂,有些类似于尝试在水下建筑一座桥。
4. Do dolphins see under water?
海豚在水下能看得见吗?
5. Many spiders can travel along under water.
很多蜘蛛能够在水下爬行。