“Keep in touch” 是一个常用的英语短语，意思是 保持联系。它通常用于朋友、家人或同事之间分别时，表示希望未来继续保持沟通。
该短语有两种常见形式：
— “I’m moving to Canada next month.”
— “Oh really? Well, keep in touch!”
She promised to keep in touch with her old classmates after graduation.
We haven’t seen each other for years, but we still keep in touch through email.
✅ “Keep in touch” 是非正式但友好的表达，适用于大多数日常情境。
✅ 如果想显得更热情，可以说 “Please keep in touch!” 或 “Let’s keep in touch!”
❌ 不要混淆 “keep in touch” 和 “touch base”（后者更偏向短暂确认进展）。