This question can be answered from aspects such as travel preparation, challenges during the actual travel process, and adjustments after the trip. It can discuss common travel difficulties such as language barriers, cultural differences, financial management, safety issues, or health risks.

这个问题可以从旅行准备、实际旅行过程中的挑战，以及旅行后的调整等方面来回答。可以探讨语言障碍、文化差异、财务管理、安全问题或健康风险等常见的旅行困难