不倒翁有两种, 一种为水钙铝榴石玉, 另一种为玉髓蛋白石玉.Budaoweng has two kinds, one is hydrogrossular, the other is chalcedony opal.一种略微透明的绿色玉髓,用作宝石.A light green or light grayish - green variety of translucent chalcedony.最近我们鉴定到一些新的模仿品,其折射率及比重非...
拖把和水桶a mop and bucket旅馆清洁工拿着水桶和拖把进来.The hotel cleaner entered carrying a bucket and a mop.那个侍女把拖把放进桶里浸湿,用来擦地.The maid plunged the cloth into the pail and cleaned the floor....