英语词汇双保险是什么意思，双保险的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	双保险
释义	DEFINITIVE EXAMPLES 权威例句〔extra〕The car comes with most extras that you'd expect, like twin air-bags.你希望有的大部分额外配件这辆车都有，如双保险气囊。麦克米伦高阶
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