青柠汁, or lime juice, is a tangy and refreshing liquid extracted from fresh 青柠, commonly known as limes. It is widely used in various culinary applications, including beverages, dressings, and marinades. The juice is rich in vitamin C and has a distinct sour flavor that enhances the taste of many dishes. In addition to its culinary uses, 青柠汁 is often incorporated into cocktails, such as 莫吉托 (mojito) and 玛格丽塔 (margarita). It can also be used as a natural preservative due to its acidity. Overall, 青柠汁 is a versatile ingredient that adds brightness to both food and drinks.