求翻译：现在，我们即将开始一个纪念建党九十周年的小活动，并为参与的旅客准备了一份建党90周年特别纪念品，希望大家积极配合。让我们穿越时空，共渡这样一个红色之旅航班。是什么意思？

Now, we are about to start a founding 90 years of little activity, and for the participation of visitors prepared a special souvenir of the 90 anniversary of the founding, hope that we actively cooperate with. Let us through time and space, share the journey of a red flight.