机票及其税项、签注费、自费项目以及综合服务费、个人消费、医疗保险（强烈建议自行购买各种旅游保险：医疗、失踪、旅程中断等）、因私人原因及航班延误等其他不可抗力的因素引起的额外费用。
Air tickets and taxes, Visa, self program and comprehensive service fees, personal consumption, medical insurance (strongly recommended to purchase various travel insurance: medical, cancellation & interruption, etc.), and additional expenses caused by personal reasons and flight delays and other uncontrollable factors.