It has a huge mast, with the mainsail attached.

它有一个巨大的桅杆，主帆附着上面。

This one here is called the main sail.

这个在这为主帆。

The next split pin to remove is at the base of the main forstewire.

下一个需要移除的开口销位于主帆桁拉索的底部。

John drops the mainsail and sets the autopilot.

约翰放下主帆，并启动了自动驾驶仪。

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

要怎么把主帆升上去。

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

所以他们真的是利用主帆吹来的风帆冲浪，然后悬挂起来。

You can control this main sail, whether it's close or far out, and to have that just in the right place will affect the speed of the boat.

以控制这个主帆， 无论它是靠近还是远离，把它放在正确的位置会影响船的速度。

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，很想睡觉，我的女主人看出了这一点，便让我躺在她的床上，并用一块干净的白手帕盖住我，但那块手帕比战舰的主帆还要大还要粗。