确保让自己一直
Make sure you keep yourself
以上为机器翻译结果，长、整句建议使用 人工翻译 。
几年来，富裕的奴隶主一直谈论让南方各州脱离联邦以确保他们自己的生活方式。
For years, rich slave owners had talked of taking the southern states out of the Union to save their way of life.
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