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	compensatory compensatory time comper compete competence competency competent competently competition competitive competitive advantage competitive exclusion competitively competitiveness competitor compilation compile compiler compile time comping complacence complacency complacent complacently complain

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