So the first thing as I show you in the video is that we may be able to control the trajectory of a sailing boat better, or we may be able to never be in irons, so never facing the wind, we always can catch the wind from both sides.
就像我在录像里给你们展示的一样，首先我要给你们看的是 我们也许可以更好的 控制帆船的行进轨道 或者我们再也不会背离风向 所以不会逆风行驶 我们总是可以两面都迎风