圆周运动.
To draw a circle,get in position and start by resting your hand on the page and making the circular motion a few times without putting pen to paper.
要画圆圈,先定位然后手放松开始空手在页面上作圆周运动几次,不用实际画在纸上.
circular motion是什么意思
圆周运动.
To draw a circle,get in position and start by resting your hand on the page and making the circular motion a few times without putting pen to paper.
要画圆圈,先定位然后手放松开始空手在页面上作圆周运动几次,不用实际画在纸上.