测量员从海岸向内陆行进数千英里，每增加几英尺就停下来测量海拔，每增加一英尺就用两根杆子做标记。

Surveyors marched inland from the coast for thousands of miles, stopping at increments of as little as a few feet to measure their elevation, and marking each increment with two poles.

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我中间的女儿，Maia因为她长大了许多而非常兴奋……如果她达到了4英尺的标记，就意味着她可以去水上公园更大的滑梯。

My middle daughter, Maia, has been excited because she’s growing a lot … if she reaches the four-foot mark, that means she can go on the bigger slides at the water park.

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准备一条有标记的绳子或者是100英尺的卷尺，用来给场地划定界限。准备一个与脚同宽，长约4英尺的木板，用以压倒麦秆。

You will need a marked rope or a 100ft measuring tape to mark out the site, and a foot-wide wooden board about 4ft long to do the flattening.

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