照样子写一写
例：一棵 → 一棵棵 → 一棵棵大树 → 一棵棵大树随风摇摆
________→_________→__________→___________________
________→_________→__________→___________________
________→_________→__________→___________________
照样子写一写
例：一棵 → 一棵棵 → 一棵棵大树 → 一棵棵大树随风摇摆
________→_________→__________→___________________
________→_________→__________→___________________
________→_________→__________→___________________