1. An elongated lowland between ranges of mountains, hills, or other uplands, often having a river or stream running along the bottom. 
   山谷在山脊或其它高地之间的狭长低地，常有沿着底部流淌的小河或小溪
2. ocean bottom seismological observation 
   海底地震观测
3. A bottom drawer; the bottom stair. 
   底层抽屉；底层楼梯
4. Bounty has no bottom. 
   慷慨无止境。
5. Bounty have no bottom. 
   慷慨无止境。

查看更多例句 相关情景会话

• 1. 底注法
  bottom rot 底腐病...bottom running 底注法...bottom sampler 水底取土钻; 采泥器
  www.cibo.biz - 相关搜索