英语词汇coarse gravel是什么意思，coarse gravel的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	coarse gravel
释义	DEFINITIVE EXAMPLES 权威例句〔ballast〕Coarse gravel or crushed rock laid to form a bed for roads or railroads.道碴：用来铺公路或铁路路基的粗砂砾或碎石美国传统
随便看	underpayment underpayment underpays underpeopled underperform underperform underperform underperformed underperformed underperformed underperformer underperforming underperforming underperforming underpick underpin underpin underpin underpin underpinn underpinned underpinned underpinned underpinned pile underpinner

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