right up and down的意思|示意

String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm — two entirely different movements.

弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。

Does it actually come down and then back up without going to the left or to the right and without making an Angle?

有可能往下然后往回来，并且不偏不倚，也没有形成一个角吗？

And as we know what will happen that the water will pass up the pipe and down on the right hand side.

我们都知道接下来会怎样，水将通过吸管流到右边。

String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm-two entirely different movements.

弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。

Pulled over, and with a torch shining in his eyes, he was asked to focus left, right, up and down.

警察让司机把车停到一边，用手电筒照向他的眼睛，然后让他分别注视左右上下四个方向。

Lakoff reckons that the volunteers are making use of two sets of metaphors for imagining Numbers: that up is more and down is less, and that right is more and left is less.

Lakoff认为志愿者们使用了两种隐喻：上代表多、下代表少和右代表多、左代表少。