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! Don’t . It’s dangerous. WORD BOX climb, careful, play with fire, touch , downstairs Be careful ! It’s dangerous. Don’t climb the tree. Don’t touch the wire.(電線(xiàn) ) Don’t run downstairs ! Don’t play with fire . It’s dangerous. WORD BOX climb, careful, play with fire, touch , downstairs the crosswalk. It’s safe. the footbridge. It’s safe. ’t run downstairs. the sidewalk. It’s safe. the crosswalk. It’s safe. the footbridge. It’s safe. ’t run downstairs. the sidew