单语范例（未经PONS编辑处理）
Traditionally, corporations have set policies telling their business travellers what they can book, which channels they should book through and how much they can spend.
www.managers.org.uk The three characters unite in the book through their dreams about quick earnings.
en.wikipedia.org Its members are professional writers who must have published at least one book through a commercial publisher.
en.wikipedia.org Travel agents can also book through the company's contact center.
en.wikipedia.org Most last minute app businesses earn their money from a commission the hotels pay when customers book through the app.
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