單字卡學習系統
| 類別 Vocabulary
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Many sharecroppers worked on the farm.
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The sharecroppers grew cotton.
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People gave money for the war effort.
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The factory helped the war effort.
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We must stop discrimination.
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Discrimination is not fair.
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Boll weevils eat cotton plants.
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Farmers fear boll weevils.
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The school is integrated.
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They joined an integrated team.