走廊两端各有一道门。

There's a door at either end of the corridor.

《牛津词典》

小男孩站了起来，抓住机会探索音乐厅的奇观，最终穿过了一道门，上面写着“禁止进入”。

Catching the chance to explore the wonders of the concert hall, the little boy stood up and finally made his way through a door which was marked "No Admittance".

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他一路前进走到走廊末端的一道门后。

He makes his way until he reaches a door at the end of the hallway.

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