Other choices, in descending order of personalization, are: a real-time phone call, a voice-mail message, a handwritten note, a typewritten letter and the most unfriendly is email.
2018年12月四级真题（第二套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
ADJ
（次序）下降的，递减的
When a group of things is listed or arranged in descending order, each thing is smaller or less important than the thing before it.