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嘿，把你的手指拿出来！别再抠了，我们一起来研究一下这些小东西。没错，我们要说的正是鼻屎！ whats a booger? 鼻屎是神马？ Hey, get your finger outta there! Instead of picking them out, lets learn about those little blobs. Yeah, were talking about boogers. 嘿，把你的手指拿出来！别再抠了，我们一起来研究一下这些小东西。没错，我们要说的正是鼻屎！ To understand what boogers are, you need to know about mucus. Mucus is the sticky, slimy stuff thats made inside your nose. You may have another name for nose mucus: snot. Your nose and sinuses make about 1 liter of snot every day. 要了解鼻屎，我们就要先来认识黏液。黏液是我们鼻子里黏稠又粘滑的液体，你也可以叫它鼻涕。你的鼻子和鼻窦每天要分泌出大概一升的鼻涕。 Mucus has a pretty important jobit protects the lungs. When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen. If these made it all the way to the lungs, the lungs could get infected, making it tough to breathe. Luckily, snot helps trap this stuff, keeping it in the nose and out of the lungs. 鼻涕有个非常重要的作用，就是保护我们的肺。当我们平时用鼻子呼吸的时候，会吸入空气中的很多杂质，比如灰尘、尘土、细菌、花粉等。如果这些杂质直接进入到我们的肺里，那么肺就可能受到感染，使呼吸困难。幸亏，我们有鼻涕，鼻涕可以把杂质隔绝出肺而留在我们的鼻子里。 | 
