비기너를 위한 보카의 이해

I'm a mucus in the nose.

Author
john
Date
2008-05-29 14:19
Views
3528
I am a liquid. I flow down slowly but get back very fast. Most times I am colorless and transparent. when you catch a cold, I come out and my color become yellow. You will see me often on the face of children. I'm a mucus in the nose.



What am I ?