Gakkō-no toire-wa washiki-da-kara tsukaenai-tte. (She says she can't use the Japanese-style toilets at school.)
Situation 1: Mrs. Okubo is at home, chatting with her friend Mrs. Yamashita, when Mrs. Okubo's little daughter, Mariko, comes back from school and rushes to the restroom.
大久保: あんなふうに、帰宅するといつもトイレにダッシュするの。学校のトイレは和式だから使えないって、がまんしているらしいの。