It has a huge mast, with the mainsail attached.

它有一个巨大桅杆，主帆附着上面。

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

要怎么把主帆升上去。

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，脖子上风帆绕着肩膀飘扬。

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

所以他们真是利用主帆吹来风帆冲浪，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，准备睡觉，女主人看出了这一点，她把我放在她自己床上，并用一块干净白手帕盖在我身上，但比军舰主帆更大更粗糙。