3月25日人民币对美元中间价调升32个基点

The preposition 对 introduces the target, direction, or counterpart of an action or comparison. In financial news, it is often used to show an exchange relationship, such as one currency against another.

为 is a formal written equivalent of 是, often used in news, reports, and official writing to state a value, result, or judgment. It sounds more concise and formal than 是.

由 introduces the agent or responsible party, similar to 'by' in English. In formal written Chinese, it is commonly used to indicate who carries out an action, especially in business and news contexts.

将 marks future or intended action in formal style. When combined with 用于, it expresses the planned purpose or allocation of something, especially money, resources, or effort.

完成 means to complete or finalize something. In business Chinese, it is frequently used with transactions, projects, or financing rounds to indicate that a process has been successfully concluded.