neolithic flint mines at spiennes meaning in English
斯皮耶纳新石器时代的燧石矿
Examples
- The neolithic flint mines at spiennes , covering more than 100 ha , are the largest and earliest concentration of ancient mines in europe
比利时斯皮耶纳的新石器时代燧石矿面积达一百多公顷，是欧洲最大且最早的古代矿坑的集中地。