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英語單字
protein
B2高頻 NGSL-2英 /ˈprəʊtiːn/美 /ˈprəʊtiːn/
noun
蛋白質
a substance, found within all living things, that forms the structure of muscles, organs, etc. There are many different proteins and they are an essential part of what humans and animals eat to help them grow and stay healthy.
在真實影片裡記住 protein
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