Climbing is a very healthy sport．It can m people strong and h ．My friend is very f and she is very w about it．Then a friend tells her climbing can help her．So she often g climbing every Saturday．And now she is very slim(苗条的)and healthy．She still keeps climbing the mountain now. If you want to go climbing, you’ll have a lot of t to do．First, you should wear a p of comfortable sports shoes．Then, you should h a good rest before you climb a mountain．Last, it’s better to have a partner(同伴) w you, so you can help each  o ．Come on, friends, let’s go climbing at weekends．