So great was her light, she made every tree cast a well-defined shadow on the smooth sandy ground.

她的光是如此之大，她使每棵树都在光滑的沙地上投下清晰的影子。

Now, as they came to the Pecos River, the wagon hit a big rock. The force threw little Bill out of the wagon and he landed on the sandy ground.

现在，他们来到佩科斯河时，马车撞到了一块大石头。那力道把小比尔扔出了马车，他落在沙地上。

And during the winter of 373 BCE, the Greek city of Helike was struck by an earthquake so strong that it liquefied the sandy ground upon which the city was built.

在公元前 373 年的冬天，希腊城市赫里克 (Helike) 遭受了一场强烈的地震，以至于这座城市所在的沙地都被液化了。