英語學習：你的牀單幹淨嗎

"Even if you don't have allergies per se, you can have an allergic response," Tierno said.

“即使你本身不過敏，你可能也會有過敏性反應，”提艾諾説道。

Another reason your sheets get dirty quickly has little to do with your behaviour or sweat patterns - the issue is simply gravity.

你的牀單很快就變髒的另一個原因與你的行為或流汗關係不大，這只不過是引力的問題。

"Just like Rome overtime was buried with the debris that falls from gravity, gravity is what brings all that material into your mattress," Tierno said.

“就像重力會引起碎片的墜落，而超過一定時間，羅馬就會埋葬在這些碎片中一樣，重力也會把所有的那些物質帶到你的牀墊上，”提艾諾説道。

One to two weeks of this build-up is enough to leave anyone with a scratchy throat - especially those with significant allergies or asthma.(One in six Americans have allergies.)

這些物質積累一到兩週就足以讓任何人喉嚨沙啞，特別是那些有嚴重過敏症或哮喘的人。(六分之一的美國人都有過敏症。)

"If you touched dog poo in the street, you'd want to wash your hands," said Tierno. "Consider that analogous to your bedding.”

“如果你在街上碰到了狗便便，你就會想洗一下手，”提艾諾説。“你的牀上用品也是一樣的。”