单元：Unit 03.txt

• train
• subway
• ride
• rode
• bike
• sixty
• seventy
• eighty
• ninety
• hundred
• far
• minute
• kilometer
• new
• every
• by
• drive
• live
• stop
• cross
• river
• many
• village
• between
• bridge
• boat
• ropeway
• year
• afraid
• like
• leave
• dream
• true