词组短语
dummy variable[计]哑变量；名义变数；虚变数
dummy bar引锭杆（连铸用）
look like a dummy显出呆头呆脑的样子
双语例句
- She played a jack from dummy.
她从明手摊出的牌中打出一张J。 - The bottles of whisky on display are all dummies.
所陈列的威士忌酒都是假的。
权威例句
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