常見問題：
問：2. Q: How many members are there in Secret? 答： A: Secret originally had five members, but now consists of only four members after Song Ji-eun's departure.
問：10. Q: Are Secret still active as a group? 答： A: Yes, Secret is still active as a group, with the remaining members continuing to release music and participate in various activities.
問：冰桶挑戰在全球範圍內的影響如何？ 答：冰桶挑戰在全球範圍內引起了廣泛的關注和參與，成為了一個國際性的慈善活動。