名词 1.(价格) price 短语和例子 单[基] 价 unit [basic] price; 集市贸易价 rural fair price; 减价 reduce the price; 廉价 low-priced; 零售 [批发] 价 retail [wholesale] price; 实 [议] 价 net [negotiated]price; 擅自提价 price to be raised without permission; 要价 ask a price2.(价值) value 短语和例子 等价交换 exchange of equal values; 估价 estimate the value of; evaluate; 我请他对这些画估个价。i asked him to set a value on the pictures.3.[化学] (化合价) valence 短语和例子 电价 electrovalence;多价元素 element of multivalence; 共价 covalence; 原子价 atomic valence; 氢是一价的元素。 hydrogen is a one-valence element