| 单词 | polishing compound |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔bone ash〕The white, powdery calcium phosphate ash of burned bones, used as a fertilizer, in making ceramics, and in cleaning and polishing compounds.骨灰：焚烧骨头所得的白色粉末状磷酸钙。用作肥料，用于制陶器，也可用来擦拭珠宝美国传统 |
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