varnish for deadening sound

例句：

1. 1.The wooden table needs to be varnished before it is used again.
   这把木桌需要再次使用前先涂上清漆。
2. 2. The artist applied a thin layer of varnish over the painting to protect it from dust and scratches.
   艺术家在这幅画上涂了一层薄薄的清漆，以保护它免受灰尘和刮擦的伤害。
3. 3. The varnish on the furniture has faded, revealing the original wood underneath.
   家具上的清漆已经褪色，露出了下面的原木。