drain cistern

常見(jiàn)例句

雙語(yǔ)例句

• Water came down from the roof through a small drain carved in the outside north wall of the grotto. It was led to a small pool which served to decant it before it flowed into the cistern proper.
  水從屋頂沿著北邊外墻挖的小水管流下來(lái)，形成一個(gè)小水池為協(xié)助它徐緩地流入更適合的貯水槽。
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