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n.贝塔,希腊字母中的第二个字母; 变形: 复数:betas 英英释义: beta[ 'bi:tə, 'bei- ]n.the 2nd letter of the Greek alphabetbeets同义词:genus Betaadj.second in order of importance"the candidate, considered a beta male, was perceived to be unable to lead his party to victory"preliminary