zhè / xiàng / huó / dòng / jì / néng / duàn / liàn / shēn / tǐ / yòu / néng / jié / jiāo / péng / you / hé / lè / bù / wéi

这项活动既能锻炼身体，又能结交朋友，何乐不为？

This activity can both exercise your body and help you make friends, so why not?