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What makes iron better than bronze
鐵跟青銅相比 其優勢在于
is it holds an edge better.
能更好地穩固船邊
If you're trying to work with wood,
如果你是用木頭工作
the ability to keep a sharp edge meant
如果想將船邊牢固
you could make thin planks,
就要用很厚的木板
you could shape beams, you could build better ships.
如果能制造船梁 就能造成理想的大船
Iron tools revolutionize shipbuilding
鐵具給造船業帶來了新的春天
And allow mankind to innovate as never before.
也讓人類發生了翻天覆地的變化
A revolutionary invention:
龍骨的誕生
The keel.
是一項具有劃時代意義的發明
Now ships can remain stable in the roughest waters,
現在船可以在惡劣的海洋環境中航行
The key to mankind's future at sea.
而主宰人類未來的關鍵正是航海
Hanno has sailed from the Mediterranean
漢諾從地中海出發
Into uncharted waters: the Atlantic Ocean.
駛向未知的大西洋海域
With 30,000 colonists,
同三萬名殖民地開拓者一道
He's looking for new lands, new opportunities.
他在找尋新的大陸 新的契機
For some of these early explorers,
這些開拓者中的一部分人
all they've been told
他們知道的只是
is that the world drops off.
陸地被分成很多部分
It's a step into the unknown, it's huge.
這就像踏上了未知的旅途 意義重大
