bones
1.
骨头
any of the pieces of hard whitish tissue making up the skeleton in humans and other vertebrates.
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his injuries included many broken bones
2.
骨头
the calcified material of which bones consist.
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an earring of bone
1.
骨头
remove the bones from (meat or fish).
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while the gumbo is simmering, bone the cooked chicken
2.
骨头
study (a subject) intensively, typically in preparation for something.
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she boned up on languages she had learned long ago and went back to New Guinea