Few people knew about online food delivery（外卖）apps ten years ago, but today, many would find it hard to live without them. For better or for worse, online food delivery services have changed the way we eat.
These services without doubt have many advantages. They provide jobs for millions of people and help restaurants find more customers. Since the apps are very easy to use, they also do good to customers: we can now have meals delivered at any time of day. Not only do these apps save time, they also provide us with plenty of restaurants to choose from. They are useful for old people as well. They can buy meals and foods more easily with these apps.
First, they make it even easier to order unhealthy food. Food safety is another problem: it can be hard to know where the food comes from. As delivery men need to send the orders as quickly as possible, some pay little attention to traffic rules. What's more, delivery services are creating too much packaging waste, and this will be harmful to the environment.
There are many advantages of online food delivery services, but we need to make sure that we make the right choices in the long run. We also need to make sure what we eat is healthy. Next time you are thinking about ordering in, ask yourself whether you really need to. Most of the time, it's better to buy what you need and cook by yourself.
A. This is especially important for people who might not have time to cook.
B. Because of this, a number of people have even lost their lives recently.
C. They are also making a big difference to our society.
D. However, we mustn't forget the disadvantages of these services.
E. We should try our best to avoid waste.
F. Learning how to order food online is necessary for young people.
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