单元：Module 12.txt

• broken
• glass
• stairs
• aid
• first aid
• medical
• imagine
• bottom
• at the bottom of
• wrong
• What`s wrong with
• trouble
• lift
• lift up
• harmful
• drop
• training
• make sure
• cover
• earthquake
• warn
• inside
• under
• window
• keep
• clear
• keep clear of
• calm
• brave
• helpful
• power