coals

第三人称单数：

动词第三人称单数: coals

更多词形：

动词过去式: coaled | 动词过去分词: coaled | 动词现在分词: coaling | 动词第三人称单数: coals |

单词例句：

China has a wealth of coal, iron and other minerals.

中国有丰富的煤、铁和其它矿产资源。

Coal can be converted to gas.

煤可以转化成煤气。

Although the engineer shoveled the coal in as fast as he could, the steam engine would go no faster.

虽然火车司炉尽快地将煤铲进炉子，但火车一点也没加快。

The coal industry is running down as coal supplies are used up.

由于煤炭的来源枯竭，煤炭工业正在衰退。

Coal is a mineral.

煤是一种矿物。

Coal, oil and mineral are the raw material of industry.

煤、石油和矿产品都是工业原料。

A coal fell from the fire and burned the mat.

一块煤炭从火中掉出来，烧坏了地席。

I shall be glad if you will forward fifty ton of coal, in accordance with your sample.

请按照贵公司提供的样品，供应我司50吨煤炭，谢谢。

Shale underlies coal.

页岩层在煤层之下。