dantgrizzleinferior coallean coallow-grade coallow-rank coalpoor grade coal低级: elementary; rudimentary; pri ...煤: coal低级煤气: low-grade gas高硫低级煤: grizzle低级: 1.(初步) elementary; rudimentary; primary; lower 低级阶段 lower stage; 低级生物 low forms of life2.(庸俗) vulgar 低级趣味 vulgar interests; bad taste3.(低等级的) low grade; [计算机] low level下载手机词典可随时随地查词查翻译