Boys and girls, may I have your attention, please?
Thank you for your attention and kindness!
We've just got the news that there is a big flood in the area near our city. Many people have lost their homes and need our help. In order to help them, our school has decided to hold an activity on the school playground from 3:00 to 5:00 this Friday afternoon. Please bring clothes and books there. Please don't donate food, because it is not easy to keep the food fresh. Your support will greatly help them overcome their difficulties. Also, please ask your family members and friends to join us.
Thank you for your attention and kindness!
答案：One possible version
Boys and girls, may I have your attention, please? We've just got the news that there is a big flood in the area near our city. Many people have lost their homes and need our help. In order to help them, our school has decided to hold an activity on the school playground from 3:00 to 5:00 this Friday afternoon. Please bring clothes and books there. Please don't donate food, because it is not easy to keep the food fresh. Your support will greatly help them overcome their difficulties. Also, please ask your family members and friends to join us.
Boys and girls, may I have your attention, please? We've just got the news that there is a big flood in the area near our city. Many people have lost their homes and need our help. In order to help them, our school has decided to hold an activity on the school playground from 3:00 to 5:00 this Friday afternoon. Please bring clothes and books there. Please don't donate food, because it is not easy to keep the food fresh. Your support will greatly help them overcome their difficulties. Also, please ask your family members and friends to join us.