Nevertheless, if you have a big enough sail, as we call it, and [a bus or spacecraft with] a low enough mass, it will get a push.
不过，如果我们所说的这种帆足够大，而宇宙飞船的质量足够小，它就能获得推力。
Over days and years a big enough sail, say a mile on a side, could reach speeds of hundreds of thousands of miles an hour, fast enough to traverse the solar system in 5 years.
一张足够大的帆，通过经年累月的积累，可以达到数十万英里的时速，足以在5年内穿越整个太阳系。
It's so big that when you sail on it, you can't see the land.
它很大，当你在湖上航行的时候，你看不到岸。
It takes a lot of skill to sail a big ship through such a narrow passage between the rocks.
要使用这艘大船从岩石之间的一条窄道通过是需要高超技术的。
Afterward he helped Duck to raise the Shy Maid's big lateen sail. Yandry took them out into the center of the river, where the current was strongest.
之后他帮鸭子升起害羞小姐号的风帆，带着大家行驶到河中央的急流。
Life is like a boat which is sailing in a big sea, lf it doesn't sail along, the arranged direction, it won't get to other side of the sea, if it meets a windstorm, it may sink.
生活是条海上航行的船，如果它失去方向，就不能到达海边，如果碰上风暴，一定会沉。
Therefore all people started to set sail, drive into the great route, the world have welcomed the big pirate time.
于是所有的人们开始起航，驶入伟大航路，世界迎来了大海贼时代。
I placed all there! "Therefore all people started to set sail, drive into the great route, the world have welcomed the big pirate time."
于是所有的人们开始起航，驶入伟大航路，世界迎来了大海贼时代。
I placed all there! "Therefore all people started to set sail, drive into the great route, the world have welcomed the big pirate time."
于是所有的人们开始起航，驶入伟大航路，世界迎来了大海贼时代。
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