The amount of water in the ocean would have formed the equivalent of a 1, 800 foot layer spread out over the entire planet.
如果将海洋所含总水量在火星表面铺展开，相当于给其表面铺了一层厚达1800英尺的水层。
2
The hospital spread upward from foot to the top of the hill.
这是一个从山脚往山顶慢慢走上去的医院。
3
Those users in turn are spread out over 65, 000 virtual acres, so foot traffic in any particular place—say, on a company\'s branded island—tends to be light.