blood
the red liquid that the heart pumps through the body, carrying oxygen to and carbon dioxide from the tissues
血液
[名词]
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登录muscle
a piece of body tissue that is made tight or relaxed when we want to move a particular part of our body
肌肉
[名词]
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登录backbone
a line of connected bones going down from your neck to tail bone in the middle of the back
脊柱, 脊椎
[名词]
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登录fat
a substance in the bodies of animals and humans, stored under the skin, which helps them keep warm
脂肪, 脂类
[名词]
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登录skull
the bony structure that surrounds and provides protection for a person's or animal's brain
头骨
[名词]
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登录finger
each of the long thin parts that are connected to our hands, sometimes the thumb is not included
手指
[名词]
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