hand-dugCOCA¹²¹³⁹⁰BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 adj.建人工开挖 Thorp’s team adapted an ancient Chinese technology that used bamboo for pipes and sisal rope and discs of leather to bring buckets of water from hand-dug wells. 索普领导的团队采用了中国的一种古老技术，用竹制管道、麻绳和皮革吸盘从人工井中抽水。 worldbank