Complex sentence: In February 2017, it was confirmed through a performance that members Hami and Hwajung had departed from the group, they were temporary replaced with new members, Nayoung and Youjin, although they never officially made their debut.
Split into simpler sentences: In February 2017, it was confirmed through a performance that members Hami and Hwajung had departed from the group. They were temporary replaced with new members, Nayoung and Youjin, although they never officially made their debut.