Because of her appearance, Fujiwara-san is assumed to be good at classical literature, even though her talent is in English, having replaced Olivia in the English speech contest and won. She's exasperated by all of her classmates who come to her to ask for help with classical literature during break time, and she comes to Olivia for someone to speak in English with. Olivia becomes fearful, suspecting that Fujiwara-san has figured out that she can't speak English..
To pretend you tripped, and 
dive into a girl's undies!
أن تدّعي بأنّكِ تعثّرتِ وتغوصي في 
!ملابس داخليّة لفتاة
ein Stolpermanöver vorzutäuschen und ’nen
Hechtsprung in das Höschen eines Mädels zu machen!
à faire semblant de trébucher
tout droit dans la culotte.
Far finta di inciampare e finire con la testa
nelle mutandine di una ragazza!
Fingir que você tropeçou,
e ir de cara na calcinha da menina!
Притвориться, что споткнулась, 
и нырнуть прямо ей в трусы!