Darcy
达西(多孔介质渗透力单位)
🗣️ 情景例句
That idea would never work in practice.
那种设想永远实现不了。
All the figures tally with the projected total.
合计和预算的总额一致。
No, it isn't! That's a cat!
不，不在！那是一只猫。