词汇与表达：coalition-coal-coral-corral

coalition
A coalition is a government consisting of people from two or more political parties.
Since June the country has had a coalition government...
从6月份起，该国一直由一个联合政府执掌政权。
A coalition is a group consisting of people from different political or social groups who are co-operating to achieve a particular aim.
He had been opposed by a coalition of about 50 civil rights, women's and Latino organizations.
大约有50个民权组织、女性社团和拉丁裔社团联合起来反对他。

coal
I put more coal on the fire.
我往火里再加了些煤。

They drove the ponies into a corral.
他们把矮种马赶进了畜栏。