upgrading of a road
道路改善工程
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In August, research claiming the upgrading of a road in the central belt cut the number of fatal accidents to zero within a year was flagged up as a reason for improvements to the A9.
BBC: Government commits to A9 dualling
应用推荐
模块上移
模块下移
不移动