Recently, nearly 26 restaurants in Nanjing have joined the “Clearing Your Plate” campaign（活动） against wasting food by offering smaller dishes.
I believe it is meaningful /necessary/important for us to take an active part in this activity.
It is a waste of food and money if we order too much food. Meanwhile, the environment will be polluted by the wasted food. Also, eating too much is bad for our health. We should take action to support the campaign.
First, we should eat up all the food in our dishes and plates. Second, we may order less or smaller dishes in the restraurant. Third, we can take the leftovers home and enjoy them later.
In a word, I think it is our duty to refuse the waste of food.