介绍:
One is a number and so is two.
Two is a number and so is three.
Three is a number and so is four.
Four is a number and so is five.
Five is a number and so is six.
Six is a number and so is seven.
Seven is a number and so is eight.
Eight is a number and so is nine.
Nine is a number and so is ten.
one two three four five six seven eight nine ten
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