They searched his home without any reasons.

他们毫无理由搜查了他的家。

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The manager changes the goals frequently without any reasons.

主管经常任意更改目标（会说明理由）。

youdao

The bank delays or refuses to pay the principal and interest of the deposits without any reasons;

无故拖延、拒绝支付存款本金和利息的；

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Mr Williams said Oak Farm is a substantial company with whom they have dealt for a number of years without any reasons for concern.

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For decades, we've heard that "screening saves lives" without any accompanying message that there might be reasons not to be screened.

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