Watermelons are typically refrigerated at a temperature of 13 degrees Celsius (55 F).  Storing your fruit at 21 Celsius (70 F) will increase its lycopene and beta-carotene content (both of which are important antioxidants). A resealable bag or container is the best place for watermelon.  This will preserve its flavor and freshness. In a pinch, wrap your watermelon tightly in aluminum foil or plastic wrap. Some people advise against freezing watermelon altogether, since thawing or cutting open a frozen watermelon piece could cause the juice to drip out.  If you decide to live on the wild side and want to freeze your watermelon, place it in airtight containers or heavy-duty freezer bags.  The watermelon will stay good for 10-12 months.

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Write a summary of the previous text in Chinese:
将完整的西瓜或者西瓜片存放在冰箱里。 将切块的西瓜放进密封保鲜盒里。 冰冻西瓜时，务必要谨慎。