这正是间接收入法则！
麦积山的游客量2004年为30万人，今年预计会增加到100万人，但旅游的直接和间接收入很难预测。
The flow of visitors to Maijishan is expected to grow from 300,000 visitors in 2004 to a million visitors this year. But direct and indirect revenues from tourism are hard to predict.
麦积山的游客量2004年为30万人，今年预计会增加到100万人，但旅游的直接和间接收入很难预测。
The flow of visitors to Maijishan is expected to grow from 300,000 visitors in 2004 to a million visitors this year. But direct and indirect revenues from tourism are hard to predict.
应用推荐