单词	high-grade
释义	high-grade /ˈhī ˈˌɡrād / adjective 1Of very good quality: high-grade printing papers... During this time Zeiss has been a leader in improving the quality and performance of high-grade optical equipment. It's elegantly put together on high-grade paper, the writers are almost all well known in this segment, and the design is simplistic and beautiful. These funds invest in high-grade corporate bonds, charge less than 1% in fees each year and have top five-year records. 1.1(Of ore) rich in metal value and commercially profitable.Many mines have zones of high-grade ore that are very profitable to mine.... At first, miners separated high-grade ore from waste rock underground by hand. At times mining operations had to cease as hundreds of illegal miners entered the pits to steal freshly blasted high-grade ore.
随便看	in someone's lap in someone's name in someone's place in someone's pocket in someone's wisdom in someone/thing's (own) way in some sort insomnia insomniac insomuch in sooth insouciance insouciant insouciantly insource insourcing insp. in spades inspan in specie inspect inspection inspection chamber inspection copy inspection pit

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