The 24-hour slope safety hotline: 28855888 has been enhanced with addition of Putonghua to the existing Cantonese and English services and more information on slope maintenance and slope safety.是什么意思_The 24-hour slope safety hotline: 28855888 has been enhanced with addition of Putonghua to the existing Cantonese and English services and more information on slope maintenance and slope safety.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句