游泳时遇到亲人，可以用英语表达为 “I came across a family member while swimming” 或 “I encountered a relative while swimming”。至于“亲爱”的翻译，根据不同的语境和关系，可以有以下几种表达方式：
If you’re referring to a close relative like a parent or sibling, you might say:
- “I saw my dear [name] while swimming.”
- “My beloved [name] was swimming there.”
If you’re speaking to a romantic partner or a close friend, you might use:
- “I met my loved one while swimming.”
- “My darling [name] was in the pool.”
For a more formal or distant relationship, you could say:
- “I encountered my relative, [name], while swimming.”
- “I bumped into my [relationship], [name], in the water.”
Remember to replace “[name]” with the actual name of the person you encountered.