One week ahead, Sofitel had called on guests to take part in Earth Hour through e-flyer, email banner, guest letter, in-room video, LED, telephone voice message and poster.
活动前一星期，成都索菲特万达大饭店通过电视宣传片、电话录音、邮箱广告条幅、电子宣传单、电子显屏、客房内信件和公区活动海报告知宾客索菲特参加“地球一小时”的情况。
youdao