12c., a merger of Old English ora "ore, unworked metal" (related to eorte "earth," see earth; and cognate with Low German ur "iron-containing ore," Dutch oer, Old Norse aurr "gravel"); and Old English ar "brass, copper, bronze," from Proto-Germanic *ajiz- (cognates: Old Norse eir "brass, copper," German ehern "brazen," Gothic aiz "bronze"), from PIE root *aus- (2) "gold" (see aureate). The two words were not fully assimilated till 17c.; what emerged has the form of ar but the meaning of ora.
雙語例句
1. We dowse oil and ore in South America for big companies.
我們在南美洲為一些大公司探測石油和礦石。
來自柯林斯例句
2. They struck a rich seam of iron ore.
他們開出一個(gè)富鐵礦層。
來自《權(quán)威詞典》
3. How many tons of ore can this machine crush in an hour?
這機(jī)器每小時(shí)可以破碎多少噸礦石?
來自《現(xiàn)代漢英綜合大詞典》
4. The net profit amounts to 20 dollars per ton of ore.