New words and phrases:
climb
careful
dangerous
touch
play with fire
downstairs
触摸,碰
玩火
小心的,仔细的
危险的
往楼下
爬
It’s dangerous.
Don’t play with fire.
Don’t climb the window.
Don’t run downstairs.
Don’t touch it.
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Be careful,be careful.
Don’t run downstairs.
It’s dangerous.
Don’t climb the window.
It’s dangerous.
Don’t play with fire.
It’s dangerous.
Be careful,be careful.
祈使句的否定形式
Don’t open the window.
Don..