书籍 Insight - 中级 - 单元 2 - 2C

a difficult and lengthy journey, often taken on foot or by hiking

行进

a long journey taken on a ship or spacecraft

航程

a trip that has been organized for a particular purpose such as a scientific or military one or for exploration

有组织的旅行

the act of traveling in an airplane

飞行

a journey for pleasure, during which we visit several different places

旅游

a short trip taken for pleasure, particularly one arranged for a group of people

短暂的悠闲旅行