Yet that business may provide a comfortingly stable source of cash as a slowing world economy prompts airlines to retire old jets and cancel orders for new ones.是什么意思_Yet that business may provide a comfortingly stable source of cash as a slowing world economy prompts airlines to retire old jets and cancel orders for new ones.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句