n.
the smallest whole number or a numeral representing this number
同义词:one1Isingleunity
one of four playing cards in a deck having a single pip on its face
someone who is dazzlingly skilled in any field
同义词:adeptchampionsensationmavenmavinvirtuosogeniushotshotstarsuperstarwhizwhizzwizardwiz
a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey
同义词:Allied Command Europe
a serve that the receiver is unable to reach