The girls think that Komori-san acts a little bit too much like a guy, but they realize quickly their assumptions may have been incorrect...
You're carrying that heavy stuff
 so much all the time
أنتِ تحملين تِلكم الأغراض الثقيلة
كثيراً طِوال الوقت
Du verhältst dich schon
wie ein alter Sack,
Cada vez que levantas cosas pesadas,
Cada vez que levantas cosas pesadas,
À force de porter 
tous ces trucs,
Passi così tanto tempo a sollevare pesi
Está sempre carregando coisas pesadas,