It has a huge mast, with the mainsail attached.

有个巨大的桅杆，帆附着上面。

How do you get the mainsail up? Uh...

要怎么把帆升上去。

He nods with such satisfaction that the fat under his chin sways between his shoulders like a mainsail in stormy conditions.

他满足地点头，脖子上的肥像迎风的帆绕着肩膀飘扬。

So they literally windsurf off the wind that comes off the mainsail and they hang.

所以他们真的是利用帆吹来的风帆冲浪，然后悬挂起来。

I was very much tired, and disposed to sleep, which my mistress perceiving, she put me on her own bed, and covered me with a clean white handkerchief, but larger and coarser than the mainsail of a man-of-war.

我非常疲倦，准备睡，人看出了这点，她把我放在她自己的床上，并用块干净的白手帕盖在我身上，但比军舰的帆更大更粗糙。