warukatta-ne-negima.png

Translation

• Context: a tsundere and her friend run to school.
• ni shitemo Asuna
  にしてもアスナ
  [That said,] Asuna,
• ashi hayai yo nee
  足速いよねー
  1. [Your] legs are fast. (literally.)
  2. You [run] fast.
• watashi kore ya no ni
  私コレやのに
  Even though [for] me, [I] have this.
  • This means the roller-skates. She's running at the same speed the other is rollerskating.
• warukatta wa ne
  悪かったわね
  [Well, I'm sorry]
  • This is sarcasm.
• tairyoku baka de
  体力バカで
  For being a physical-strength baka.
  • i.e. for having so much stamina, endurance, agility, strength, etc.