交通运输业和旅游业是国际航空公司、航运公司、预约服务机构和旅馆收益的主要来源。
Earnings from transportation and from foreign travel can be an important source of revenue for international airlines, shipping companies, reservations agencies, and hotels.
交通运输业和旅游业是国际航空公司、航运公司、预约服务机构和旅馆收益的主要来源。
Earnings from transportation and from foreign travel can be an important source of revenue for international airlines, shipping companies, reservations agencies, and hotels.
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