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collagen

1 ENTRIES FOUND:
collagen /ˈkɑːləʤən/ noun
collagen
/ˈkɑːləʤən/
noun
Learner's definition of COLLAGEN
[noncount]
: a substance that occurs naturally in the bodies of people and animals and is often put into creams and other products that are sold to make a person's skin smoother and less wrinkled胶原(蛋白)

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