教育子女无疑是每位父母的责任。

It is undoubtedly every parent's duty to educate their children.

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It is undoubtedly every parent's duty to educate their children.

undoubtedly 由前缀 un-(表示"不")和动词 doubt(怀疑)加上副词后缀 -ly 构成。字面意思是"不容怀疑地",即"毫无疑问地、无疑地"。

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