a protein found especially in the joints (= places where two bones are connected) of humans and animals膠原蛋白
an injection of collagen into the lips or skin to make the lips appear larger or the skin appear younger and smoother(作爲整形美容手術的)膠原蛋白植入(或注射)
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
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