foundry pit

例句：

1. 1. The foundry pit was filled with molten metal as the machine worked.
   当机器工作时，铸造厂的坑洞里充满了熔融金属。
2. 2.The workers carefully removed the debris from the foundry pit to prevent further damage.
   工人们小心翼翼地从铸造厂的坑洞中清除了碎片，以防止进一步损坏。
3. 3.The foundry pit was a dangerous site, and the workers were required to wear protective gear.
   铸造厂的坑洞是一个危险的地方，工人被要求穿戴防护装备。