Cách sử dụng
The expression "beauty is only skin-deep" means that a person's outer appearance isn't the most important thing about them. It's like saying that just because someone looks pretty or handsome, it doesn't automatically mean they're a good person or have a good character. The expression is often used to remind people to focus on what's inside and not judge others based on their looks. It's similar to the saying "don't judge a book by its cover".