您要查找的是不是：
- Have you turned off the water valve? 你关掉水阀了吗？
- We must maintain a firm attitude. 我们必须采取坚定的态度。
- He is too poor to maintain his family. 他太穷了，无法养活家人。
- A substance believed to maintain life indefinitely. 长生不老药被认为可以使生命无限的物质
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- The plan is merely designed to maintain their nuclear superiority. 制定这个计划只是为了保持他们的核优势。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- The factory cannot maintain current levels of production. 该工厂不能保持目前的生产水平。
- He can't maintain enough equilibrium to ride a bike. 他骑自行车不能保持平衡。
- Part of my job is to maintain good relationship with our suppliers. 我的部分工作是同我们的供应商保持良好的关系。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- We must try to maintain the equilibrium of supply and demand. 我们必须努力保持供求均衡。
- The exhaust valve on my car have burn out three times. 我车子上的排气阀已烧坏三次。
- Japan today simply stands too tall and too rich to maintain a low profile. 日本现在太醒目，太富裕了，很难再不引人注意了。
- The exhaust valve on my car has burnt out three times. 我车子上的排气阀已烧坏三次。
- A device that brings about and helps maintain equilibrium. 平衡器可以帮助达到平衡或保持平衡的装置
- Mankind have been trying every means to maintain the balance of nature. 人类采用一切手段保持生态平衡。
- He continue to maintain his technical innocence of any indictable offence. 他仍然声称自己从严格的法律意义上说并未犯有任何可以起诉的罪行。
- Composed of a single valve or piece. Used of a shell. 单瓣的由单个瓣膜或部分组成的。用于壳
- We try to maintain good relation with our customer. 我们努力与客户保持良好的关系。
