求翻译：它们之所以受欢迎就是因为它们很方便，而且节约时间，既可以在快餐店里吃又可以带回家吃。并且店里环境很好，干净，服务周到，食品质量有保证。是什么意思？

They are popular because they are convenient and save time, either they can take home to eat in fast food restaurant to eat. And the store environment a good, clean, good service, food quality assurance.

They are popular is because they are convenient, and saves time, and you can eat at a fast food restaurant and can be taken home. And in very good condition, clean, friendly service, the food quality is assured.

They the reason that are welcome are because they are very convenient, moreover saves the time, both may eat in the fast-food restaurant and may bring back to the family to eat.And in the shop the environment is very good, clean, the service is thorough, food quality has the guarantee.

They are popular is because they are convenient and save time, both can eat at fast-food restaurants and you can take home to eat. Environment and the shop is very good, clean, good service, food quality is guaranteed.

正在翻译，请等待...