单词	nickel
释义	nickelnickel /ˈnɪkəl/ ●●● noun Etymology ETYMOLOGYnickel Origin: 1700-1800 German kupfernickel substance containing nickel, from kupfer copper + nickel spirit that plays tricks; because the substance contains no copper, even though it looks like copper 1 [countable] a coin that is worth five cents, used in the U.S. or Canada2[uncountable] (symbol Ni) science, chemistry a hard silver-white metal that is an element and is used in making other metals [Origin: 1700–1800 German kupfernickel substance containing nickel, from kupfer copper + nickel spirit that plays tricks; because the substance contains no copper, even though it looks like copper]
随便看	Yavapai yaw yawl yawn yawning y-axis yay Y-chromosome y-coordinate yd. ye yea Yeager, Charles (Chuck) yeah year yearbook year-end yearling yearlong yearly yearn yearning year-round yeast yeast infection

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