在传播中

Work started this week on a project to reconstruct the park's South Kaibab Trail.

本周，大峡谷南凯坝步道的重建工程开始动工。

The two-place craft was of exceedingly simple construction, consisting mainly of a reinforced steel tube framework overlaid with a skin of fiberglass and plastic laminate.

这两个地方是非常简单的工艺施工为主的钢筋钢管框架的玻璃纤维和塑料皮覆盖层压板。