It was as though the features had been hewn on to a great stone ball.

他的五官就像是在一个大石头圆球上粗粗劈凿出来的。

Many of the stone balls would be cracked or have pieces broken off.

许多石球会破裂或碎裂。

However, none of the carved stone balls have been actually found in tombs or graves.

然而，在墓葬或坟墓中实际上没有发现任何雕刻的石球。

This is because the stone balls were made of different types of stone including sandstone, green stone and quartzite.

这是因为石球是由不同类型的石头制成的， 包括砂岩、绿石和石英岩。

Spread across the Osa region in southern Costa Rica over 300 stone balls, known as Las Bolas, have mystified archeologists for decades.

分布在哥斯达黎加南部奥萨地区的 300 多个石球，被称为 Las Bolas， 几十年来一直让考古学家感到困惑。

I had coasted along the lower wall of the orchard—turned its angle: there was a gate just there, opening into the meadow, between two stone pillars crowned by stone balls.

我沿着果园的下墙滑行——转过它的角度：那里有一扇门，通向草地，在两根石柱之间。