他花了很多时间处理与工作有关的邮件。

He spends a lot of time dealing with ___business-related emails.

她参加了为期两天的商务相关会议。

She attended a two-day ___business-related conference.

她参加了一个关于市场营销的商业相关会议。

She attended a ___business-related conference about marketing strategies.