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.

這個問題可以從旅行準備、實際旅行過程中的挑戰，以及旅行後的調整等方面來回答。可以探討語言障礙、文化差異、財務管理、安全問題或健康風險等常見的旅行困難。