It could take four days, even if Dickie is able to help Also, as there are many vertical pitches within the cave rope after rope after rope.

即使迪基能够提供帮助，也可能需要四天的时间。而且，因为洞穴内有许多垂直的绳索，一根接一根的绳索。

I alone knew it for a fact; for night after night had I pulled the rope up after him when the rest of the dormitory were asleep, and kept awake by the hour to let it down again on a given signal.

只有我一个人知道这是事实；因为一夜又一夜，当宿舍的其他人都睡着的时候，我在他身后拉起绳子，并在一个小时内保持清醒，以便在给定的信号下再次放下绳子。