英语词汇“coal ball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	coal ball
释义	coal ball a spherical mass of mineral and plant material embedded in coal beds, ranging in size from that of a pea to that of a boulder. [1735-45]
随便看	filature filbert filch Filchner Ice Shelf file tractable Tractarian Tractarianism tractate tract house tractile traction traction engine tractive tractive effort tractor tractor feed tractor pull tractor-trailer tractrix tract society Tracy trade trade acceptance trade association

英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。