“业务活动”常见的英文表达是 “business activities” 。
例句：
We need to carefully evaluate all our business activities to ensure maximum efficiency.（我们需要仔细评估所有的业务活动，以确保实现最高效率。）
The company's business activities cover a wide range of fields.（这家公司的业务活动涵盖多个领域。）