Dry erase markers are designed to write on smooth, hard surfaces and erase without a trace.

干擦记号笔设计用于在光滑、坚硬的表面上书写，而且擦除之后不留痕迹。

I recommend getting a dry erase board or a cork board.

我推荐使用干擦板或软木板。

The ingredients of a dry erase marker aren't actually all that different from a permanent marker.

干擦记号笔的成分其实与永久性记号笔没什么不同。

But here's the thing: dry erase markers only work if you're drawing on the right kind of surface.

白板笔只有在合适的表面涂画才可擦除。

Dry erase markers are designed to write on smooth, hard surfaces and erase without a trace, so how come they're sometimes so hard to erase?

白板笔本是用来在光滑而坚硬的表面写字，擦除时不留痕迹的设计，有时候怎么会难以擦除呢？

And that thing back there is a black dry erase board.

- 后面那个东西是一块黑色的干擦板。

The ingredients of a dry erase marker actually aren’t all that different from a permanent marker.

干擦记号笔的成分实际上与永久性记号笔没有什么不同。

But the key difference between permanent and dry erase markers is the third thing: the polymers.

但永久擦除记号笔和干擦记号笔之间的主要区别在于第三点：聚合物。

But here’s the thing: dry erase markers only work if you’re drawing on the right kind of surface.

但事情是这样的：干擦标记只有在你在正确的表面上画画时才有效。

And so I tested out a little tiny, tiny spot with a dry erase marker on the refrigerator, and it worked like a charm.

所以我在冰箱上用干擦记号笔测试了一个很小很小的点，它的效果就像一个魅力。

With a porous surface, like a piece of paper, the silicone polymers won't be able to form a barrier, and the dry erase ink will seep in, just like any other marker.

而在多孔的表面，如一张纸，硅酮聚合物将无法形成屏障，于是白板笔的墨水就会渗入其内，与其他记号笔没有什么区别。

With a porous surface, like a piece of paper, the silicone polymers won’t be able to form a barrier, and the dry erase ink will seep in, like any other marker.

对于多孔表面，如一张纸，有机硅聚合物无法形成屏障， 干擦墨水会渗入， 就像任何其他记号笔一样。