The concert hall closed for two weeks while technicians cleaned every organ pipe.

技術人員清潔每一根管風琴管期間，音樂廳停業兩週。

Please email the church office to confirm the delivery date for the replacement pipes.

請寄電子郵件給教會辦公室，確認替換風琴管的交貨日期。

Our tour guide explained that the cathedral's largest pipe is over ten meters tall.

我們的導遊說明，這座大教堂最大的風琴管高達十公尺以上。