热门： obviously happy 单词大全

首页字典词典成语诗文诗词名句古籍故事国学美文节日英语新

×

首页英语词典quartzquartz考试真题

quartz

英 [kwɔːts] 美[kwɔrts]

英英释义考试真题实用场景例句

n. 石英

考试真题

For example, we have quartz crystal clocks and watches accurate to within one minute a year.