From this we can know that lost a horse shoe nail may lead to lose a country.

从中我们可以知道，失去了一个马蹄钉可能失去一个国家。

youdao

A nail too small to hold the mirror; hold the horse steady; papers that were held together with tape and glue.

钉子太小不能支持住镜子；稳住马；用胶带和胶水粘住的纸张。

youdao

Andy: Yes. But Qatar also can wear their silver MEDALS with immense pride, it is really a dark horse, it beat Iran in a nail-biting battle in the other semi-final.

安迪：是啊。但是卡塔尔队员获得银牌，也非常自豪。这个队真是一匹黑马，它在半决赛中打败了伊朗队，这场比赛真是扣人心弦。

youdao

He wrote: For want of a nail, the shoe is lost For want of a shoe, the horse is lost For want of a horse, the rider is lost.

VOA: special.2009.11.01

These can be subjects such as horse care, fish husbandry and nail technology.

BBC: Revamp of vocational courses unveiled

In the Middle Ages the nail fungus, Poronia punctata, which grows on horse droppings, was extremely common.

ECONOMIST: FUN WITH FUNGI