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long
short
tree
grass
tall
short
small
big
Play a game.
Work in pairs.
Love family and enjoy（享受） your life!
Summary:
The ruler is long. The pencil is short.
The tree is tall. The grass is short.
The cars are big. The bikes are small .
Do a survey??
What is big、small、long、short、 tall and short in your life?