coal

kәul

自考高考四级六级考研 Collins 3

n. fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
v. supply with coal
v. take in coal

n. 煤, 木炭
v. 加煤

Collins 星级

Oxford 级别

1,761

BNC 频率

3,336

使用频率

coal 是一个单音节词，没有明显的词根词缀结构，主要作为一个独立的名词使用。

例句

1. Coal is used to generate electricity in many countries.

煤在许多国家用于发电。

2. The factory burns coal to produce heat for its machines.

工厂燃烧煤来为其机器提供热量。

3. Some people believe that coal mining can harm the environment.

一些人认为煤矿开采会对环境造成伤害。