抗體是我們體內的戰士之一，可以幫助我們抵抗令人討厭的入侵粒子。2. 它們是蛋白質的一種，是我們免疫系統的關鍵組成部分。 如果一個人體內沒有產生或過量產生抗體，那麼人將會生病。
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Credits:
FuseSchool
Narration and Script: Keying Li
Design and Animation: Peter van de Heuvel
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