| 单词 | pepsin |
| 释义 | pepsin ['pep.sɪn] noun uncountable specialized ■an enzyme (= chemical substance made by living cells) that breaks down protein in food in the stomach and is produced by glands there 胃蛋白酶（一种酶，是活细胞分解胃中食物的蛋白质而制造的化学物质，由胃的腺体制造） |
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