New Words：

chamber ['tʃeimbə] n. 室；卧室；寝室；会议厅
chamber pot 尿壶；夜壶

Sample Sentences：

The heart has four chambers.
The murderer was executed in a gas chamber.
The judge met the two lawyers in his chambers.
She had servants to make her bed, clean her room, and empty her chamber pot.

execute ['eksikju:t] v. 执行；实施；实行；处死
servant ['sə:vənt] n. 仆人

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