Almost a decade into its existence,the quartet whose members are still in their teens exhibits a solid professionalism comparable to that of veterans twice their age.

• 这支四人组合成立将近10年，成员依然处于十几岁的花季，但她们展示了可与两倍于自己年龄的乐坛宿将们相媲美的出色专业水准。