有聲雙語閱讀 | 手指甲比腳趾甲長得快

Pre-Listening Vocabulary

dominant 主導(dǎo)

keratin 角蛋白;角質(zhì)

puberty 青春期

nail-biting 緊張不安的;使人焦慮的

hangnail 手指頭的倒拉刺(指甲旁的逆刺皮)

Fingernails Grow Faster Than Toenails

Are you trying to grow your nails?

你有想長指甲的想法嗎?

Nails may refer to fingernails or toenails. Fortunately, fingernails grow three to four times faster than toenails. Unfortunately, toenails are much thicker than fingernails.

指甲可能指的是手指甲或腳趾甲。幸運(yùn)的是，指甲的生長速度是腳趾甲的三到四倍。不幸的是，腳趾甲比手指甲要厚得多。

Fingernails can break, split, or bend quite easily. Did you know that the nails on your dominant hand grow more quickly? This is handy, since these nails are more likely to wear down from use. Nails are made of keratin, a protein that is also found in hair and skin. Long, strong nails in children are a sign of good health. Fingernail growth slows down after puberty. This can be a nail-biting time for teens. People who bite their nails often get hangnails. Hangnails are not really nails. A hangnail is a flap of torn skin at the root of the nail. Hangnails on toes are usually caused by dry skin.

手指甲很容易折斷、裂開或彎曲。你知道你慣用手的指甲長得更快嗎?這很有用，因?yàn)檫@些指甲在使用過程中更容易磨損。指甲由角蛋白組成，這種蛋白質(zhì)也存在于頭發(fā)和皮膚中。長而結(jié)實(shí)的指甲是孩子身體健康的標(biāo)志。青春期后，指甲的生長緩慢。對青少年來說，這可能是一個緊張的時刻。咬指甲的人經(jīng)常會有指甲倒刺。倒刺并不是真正的指甲。倒刺指的是指甲根部撕裂的皮膚。腳趾上的倒刺通常是由皮膚干燥引起的。