单词详解

n.

A. 煤炭 (black mineral found below the ground, used for burning to supply heat and to make coal gas)

He put some more coal on the fire. 他往火里加了点煤。

B. 煤块 (a piece of coal)

A coal fell from the fire. 一块煤从火里掉了下来。

相关单词

复数：coals