今日挑戰句子
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Melanin is the skin's natural protection from UV radiation, but children's skin has less of this protective pigment.
黑色素是皮膚對紫外線輻射的天然保護，但兒童皮膚中，這種保護性色素較少。
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學習重點
1. pigment色素;顏料
pigment
[ˋpɪgmənt](n.)色素;顏料
口口口2 個月前
Melanin is the skin's natural protection from UV radiation, but children's skin has less of this protective pigment.
林檎先生2 個月前
Yuna2 個月前
Melanin is the skin natural protection from UV radiation, but the children’s skin has less of this protective pigment
Claire2 個月前
Melanin is the skin’s natural protection from UV radiation, but children’s skin has less of this protective pigment.
Melody2 個月前
Kate 靳2 個月前
Luna2 個月前
Mandalin is kids natural protection from UV radiation
Yuli2 個月前
Jessie2 個月前
林建志2 個月前