求翻译：　　Boys and girls, may I have your attention, please?（典型的通知开头语） We will have a sports meeting next Friday. The meeting will be held on the playground of our school, from 8 o'clock in the morning till 5 o'clock in the afternoon. Anybody who would like to take part in the competitions? Just come on and join in!是什么意思？

　　Boys and girls, may I have your attention, please? (typical notification chapeau) We will have a sports meeting next Friday. The meeting will be held on the playground of our school, from 8 o'clock in the morning till 5 o'clock in the afternoon. Anybody who would like to take part in the competitions? Just come on and join in!