英语单词大全

a vein of coal

中文翻译

煤层

常见例句

1

A sort of blue or black clay lying near a vein of coal.

今日更新

更新时间：2025-06-24 02:10:05

ultra-forming process

zigzag goldenrod

National Baseball Hall of Fame

wireless beacon

Katar Peninsula

cellobionic acid