单元：Unit 12.txt

• backpack
• miss
• unexpected
• block
• worker
• stare
• disbelief
• above
• burn
• alive
• take off
• till
• west
• cream
• boss
• pie
• course
• bean
• market
• costume
• embarrassed
• announce
• hoax
• discovery
• lady
• officer
• believable
• embarrassing