首先你要磨一磨家具，使木头平滑。
First, you must sand the furniture. You sand it to make the wood smooth.
平滑肌不同于我们熟悉的那种包覆骨骼并使身体运动的肌肉。
Smooth muscle is different from the familiar sort that cloaks bones and enables bodily movement.
横截面的平滑转变避免了死空间，并且使压力损失达到最小。
The cross sectional transitions are smooth to avoid dead spaces and minimize pressure loss.
把所有松动的钉子都钉进去，使地板平滑。
Punch down any loose nails so that the floor is quite smooth.
一定要把所有的钉子敲进去，使地板平滑。
Make sure that all the nails are punched in so that the floor is smooth.
最后，还要经过多重处理，使纸变得更加平滑、洁白。
Finally, after multiple treatment, so that the paper is more smooth, white.
这样还能资助使你的皮肤平滑柔软。
这样还能资助使你的皮肤平滑柔软。
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