Complex sentence: Daido, however, pulls out the T2 Eternal Memory and inserts it into his Lost Driver to become Kamen Rider Eternal and overpowers Double as Ryu becomes Accel to fight NEVER's sniper Ken Ashihara after he uses the T2 Trigger Memory to transform into the Trigger Dopant.
Split into simpler sentences: Daido, however, pulls out the T2 Eternal Memory and inserts it into his Lost Driver to become Kamen Rider Eternal. Ryu is confronted by another member of NEVER who wields an automatic rifle (Ken Ashihara) who pulls out the T2 Trigger Memory to transform into the Trigger Dopant.