每一天晚上我会更新当天的新闻内容,主要上传MP3 love

每一天晚上我会更新当天的新闻内容,主要上传MP3

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Classical conditioning.

Etymologies

After Ivan Petrovich Pavlov.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

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