If they can't find qualified guides, their brochures ought to read not 'We offer local Chinese guides' but 'We offer some Chinese guy who wants to earn some money'.
Exploring the world can cost a pretty penny, but you can lower the cost of travel - and deepen your experience at each location - by doing side jobs along the way.
3
他把去山里旅行与夏季打工的机会作了比较。
He balanced a trip to the mountains against the chance of a summer job.