For want of a nail the shoe was lost.

少了釘子，失了蹄鐵。

For want of a shoe the horse was lost.

少了蹄鐵，失了戰馬。

For want of a horse the rider was lost.

少了戰馬，失了騎士。

For want of a rider the message was lost.

少了騎士，失了情報。

For want of a message the battle was lost.

少了情報，失了勝仗。

For want of a battle the kingdom was lost.

少了勝仗，失了王國。

And all for the want of a horseshoe nail.

這全因少了個馬蹄釘。