英语翻译> 西方流传的一首民谣对此有形象的说明.这首民谣说：丢失一个钉子,坏了一只蹄铁；坏了一只蹄铁,折了一匹战马；折了

Here is the translation:
For want of a nail the shoe was lost;
For want of a shoe the horse was lost;
For want of a horse the rider was lost;
For want of a rider the battle was lost;
For want of a battle the kingdom was lost;
And all for want of a horseshoe nail.
(Note:want = lack; for want of = for the want of = due to the lack of)
This proverb can be found in Benjamin Franklin's Poor Richard's Almanac,a collection of maxims/proverbs on the value of work and savings.

A folk rhyme that the west spreads, to this explanation with image. This folk rhyme says: Lose a nail , a shoe out of order; Broken shoe, roll over a battle steed; Having rolled over a battle steed, wound is a knight; Wound is a knight, has lost a fight ; Have lost a fight, has died in a kingdom.

这就是所谓的butterfly effect吧,说法是巴西一蝴蝶
煽动一下翅膀,就在北美洲引起一场龙卷风