Writing and drawing slowly with chalk on a blackboard. Recorded indoors with a Tascam portalble recorder. 粉筆寫作 - Slow.wav 聲道:1 類型:wav class、drawing、scraping、board、chalk、writing、scrape、school、blackboard、OWI、draw、write、classroom 類、畫畫、刮、板、粉筆、寫作、刮、學校、黑板、OWI、畫、寫、課堂 資料來源:freesound ( https://freesound.org )