move up and down是什么意思
move up and down意思是上下移动。
例句:
1.Through the control of the auto device, the working clamp will automatically move up and down.
通过自动设备控制,工作夹具会自动向上和向下移动。
2.It provides pages with hyperlinks that enable you to move up and down the hierarchical tree.
它提供了具有超链接的页面,使您能够在层次结构树中上下移动。
3.So prices move up and down with tides in these currents.
因此价格的上升下降就和这些电流的潮汐逐渐趋向一致。
4.The act of causing something to move up and down ( or back and forth) with quick movements.
伴随快动作使某物上下(或前后)活动的行为。
5.Operate like a pump; move up and down, like a handle or a pedal.
象抽水机一样运转;象把柄或踏板一样上下移动。