名词
中文翻译：Unknown
同义词：
['successor', 'successorship', "heir例句：1. The posticous of the throne is the king's eldest son.（王位的继承人是国王的长子。）"]
例句：
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1. The posticous of the throne is the king's eldest son.
王位的继承人是国王的长子。
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2. The successor to the chair will take over the responsibilities of the current leader.
现任领导人的继任者将接管当前领导的责任。
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3. The heir to the throne is expected to succeed his father as the next ruler.
预计下一任统治者将是王位的继承人，接替他的父亲成为下一任统治者。