今日のnew words 136日目
cone
a shape that has a circular base, sloping sides, and a point at the top
hexagonal
having a shape with six sides and six angles
mass
the amount of material that something contains
Mammals include humans and all other animals that are warm-blooded vertebrates (vertebrates have backbones) with hair. They feed their young with milk and have a more well-developed brain than other types of animals.
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