广播电视英语短句 第 77 课：拯救美国宝藏-4

Then in nineteen ninety-eight officials removed it for a major restoration. 之后，1998年官方卸下旗帜进行大规模的复原。

The Star-Spangled Banner went to a special conservation laboratory. 星条旗被运送到特殊保存实验室中。

A wide moving bridge was built. It floated right above the flag. 一个宽大的移动支架成，它可以浮动在旗帜之上。

Restorers could lie on the bridge to work on every part of the flag. 复原人员可以躺在支架上来修复旗帜的每一部分。

Experts also studied the cloth and condition of the flag to decide exactly what environment would be best for it. 专家们也研究了旗帜的布料和情况，准确断定什么样的环境最适合它。