At Birch, boardgames occupy every horizontal surface, ready to draw out the procrastinator in you.

桦木酒店每一个台面上都占据着棋盘游戏，随时准备诱发延症。

But here's the interesting bit: bats never smashed into a smooth horizontal surface.

蝙蝠从不会撞到光滑水平面。

It's usually up because it's in contact with a horizontal surface.

它通常是向上，因为它与水平表面接触。

So " They were driving ON the road" . Now again, we know it's ON because the road is a horizontal flat surface.

所以“他们正在路上行驶”。现在再次强调，我们知道是“在… … 上”，因为路面是一个水平平面。