单元：Unit 11.txt

• milk
• cow
• milk a cow
• horse
• ride
• feed
• feed chickens
• farmer
• quite
• anything
• grow
• farm
• pick
• excellent
• countryside
• in the countryside
• yesterday
• flower
• worry
• luckily
• sun
• museum
• fire
• fire station
• painting
• exciting
• lovely
• expensive
• cheap
• slow
• fast
• robot
• guide
• gift
• all in all
• everything
• interested
• dark