To select and play appropriate music according to the arousal level of the user to modulate their arousal level in order to facilitate sleep and to promote morning alertness.是什么意思_To select and play appropriate music according to the arousal level of the user to modulate their arousal level in order to facilitate sleep and to promote morning alertness.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句