您要查找的是不是：
- Under water, famine; under snow, bread. [谚]洪水造饥馑，瑞雪兆丰年。
- Several fields are under water after the heavy rain. 大雨过後有几片耕地被淹。
- under water sounding 水下搜索
- Able to set and harden under water, as Portland cement. 在水中变硬的能在水下定型并变硬的，如波特兰水泥
- An electrical instrument for detecting or monitoring sound under water. 水听器，水下测音器一种电子仪器，用来探测或监听水底声音
- Most amphibians live near or under water. 大部分的两栖动物住在靠近水边或水底。
- The fields were under water after the heavy rain. 大雨后田野为水所淹。
- The boy wanted to duck under water. 这个男孩想潜入水中。
- In water sound travels nearly five times as fast as in air. 声音在水中的传播速度几乎是在空气中传播速度的五倍。
- In water sound traels nearly fie times as fast as in air . 声音在水中的传播速度几乎是在空气中传播速度的五倍。
- I will time when you stay under water. 我来计你呆在水下的时间。
- It will take root in the mud under water. 在水底的淤泥中扎根生长。
- Under water, famine, under snow, bread. 洪水造饥馑，瑞雪兆丰年。
- He learns to breathe out under water. 他学习在水下吐气。
- The boy wanted to duck under water . 这个男孩想潜入水中。
- Coastlines will disappear under water. 海岸线将消失在海水之下。
- What about structures that are partly under water? 部分结构在水下的建筑怎么说?
- How Do Frogs Breathe Under Water? 青蛙在水下呼吸的秘密是什么?
- How long can you remain under water? 你能在水底下呆多久?
