The institution of slavery was once widespread.
奴隶制度一度广为流
。
The institution of slavery was once widespread.
奴隶制度一度广为流
。
They declared for the abolition of slavery.

声明赞成废除奴隶制度。
The abolitionists advocated freedom for the slaves.
奴隶制度废除论者提倡解
奴隶。
The Americans abolished slavery in 1863.
美国于1863年废除奴隶制度。
声明:以上例句、词性分

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