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单词
melanin
释义
melanin n (biology 生) dark pigment found in the skin, hair, etc of humans and animals (人和动物的皮肤、 毛发等上的)黑(色)素.
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reflex
reflex angle
reflex camera
reflexion
reflexive
refloat
reforest
reform
re-form
reformation
reformatory
reformer
refract
refraction
refractory
refrain
refresh
refresher course
refreshing
refreshment
refrigerant
refrigerate
refrigeration
refrigerator
refuel
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