人工選擇的用法和樣例：
例句
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屬一群擁有共同祖先和明顯特征的有機體，尤指屬于同一物種的一群，通過(guò)人工選擇來(lái)發(fā)展，通過(guò)有控制的繁殖來(lái)維持
A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation.
