The group trains so that everyone can pair with any other team member and use their powerful Unison attacks. But Shirabe is having trouble pairing up with anybody but Kirika, because of her inability to trust others.
Well, that's sudden. 
More sudden than usual.
هذا طلب مفاجئ. مفاجئ أكثر من المعتاد
Na, das kommt ja wie aus
heiterem Himmel. Mehr als sonst.
Eso es repentino hasta para ti.
Eso es repentino hasta para ti.
Sacrée demande à brûle-pourpoint…
Encore plus que d’ordinaire.
Che richiesta improvvisa. Più del solito, direi.
Que coisa repentina, mais do que o normal.
Как неожиданно. Даже слишком.