We can do it indoors on special walls.
Good shoes and a harness.
They must be careful not to pollute the environment. Because this will allow future climbers to enjoy a clean environment.
The winter holiday is coming. To make everyone have a good trip, I want to talk
about how to be a good traveller. First, you should walk or ride a bike to travel as much as
possible. It's good for the environment. Second, it's not good to write or draw on anything.
And it's impolite to spit in public places. Third, please protect the environment. You
shouldn't pick flowers or walk on the grass. Fourth, you should take part in voluntary
activities. What's more, don't waste food. You'd better eat up the food you order. If you
follow the tips above, you can become a good traveller.
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