进入场景
Enter the scene
从长安出发，商队向西经过河西走廊，把货物和语言带到更远的地方。
From Chang'an, caravans moved west through the Hexi Corridor, carrying goods and language farther away.
语言重点
Language focus
“向西”“经过”“交流”是讲路线和历史变化时很实用的动词结构。
'Toward west,' 'pass through,' and 'exchange' are useful structures for routes and historical change.
读后练习
After-reading practice
用三个地名和两个方向词复述一条历史路线。
Retell one historical route with three place names and two direction words.