作者 加州劳动关系部 訪問此資源 English > https://www.youtube.com/watch?v=DbnYXb4yqL8&list=PLv5tTN13S8wqYO4Jf1Y… Spanish > https://www.youtube.com/watch?v=5uMqilbilsk&list=PLv5tTN13S8wqYO4Jf1Y… Energy Level 279
