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this is the english translation for the 1st paragraph and for the rest pleasework on your own.
This activity will be held at night on Saturday because people are usually willing to take apart in activities when the next day is a holiday which is Sunday.This helps attract more people to join the event.However,that day is not the day of the Mid Autumn Festival which may cause the decline of the festival feeling.In addition, the day after the mid autumn festival is a holiday which can also encouurage more people to participate in the event.Therefore, we suggest organising the event on the exact day of the mid atumn festival with the hope to enhance the festival atmosphere.
參考: it's interesting to translation a language to another.i enjoy itvery much but please work it out on your own before asking for help^.^