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tooth 牙齿
teeth（复数）
Body
Mouth
Teeth
…
Can they be friends?
Why are they friends?
They are friends because they ________.
help
share
play together
Why are they friends?
They are friends because they ________ .
help
share
play together
The lion
the mouse
and
This is a lion. It is big. It is strong. It has big teeth.
This is a mouse. It is small. It has small
but sharp teeth.
sharp
锋利的
park
dark
farm
car
This is a mouse. It is small. It has small