单词ditch-digging
网络: 修渠；掘沟
But ditch-digging on a national scale, Beijing knows, will not take China where it needs to go.
但是，北京清楚，全国规模的基础建设并不能就带领中国走到他们所想要去的地方。
Cost Comparison Between Plastic-lining and Ditch Digging Methods in Shanghai Siping Road Water Pipeline Repair
翻转法与开挖法在上海四平路给水管道修复工程中的成本比较