单元：UNIT 02.txt

• clean up
• cheer
• cheer up
• give out
• volunteer
• come up with
• put off
• sign
• notice
• hand out
• call up
• used to
• lonely
• care for
• several
• strong
• feeling
• satisfaction
• joy
• owner
• try out
• journey
• raise
• alone
• repair
• fix
• fix up
• give away
• take after
• broken
• wheel
• letter
• Miss
• set up
• disabled
• make a difference
• blind
• deaf
• imagine
• difficulty
• open
• door
• carry
• train
• training
• excited
• kindness
• clever
• understand
• change
• interest
• sir
• madam