hormone
US /ˈhɔːr.moʊn/
UK /ˈhɔːr.moʊn/
1.
激素
a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
:
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Insulin is a hormone that regulates blood sugar.
胰岛素是一种调节血糖的激素。
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Growth hormones play a crucial role in development.
生长激素在发育中起着关键作用。