Dictionary / Vocabulary / 切り替える
きりかえる
to change; to exchange; to convert; to renew
JLPT N1 common word Also written 切替える、切り換える、切りかえる、切換える、切り変える
数分話してみたところ、トムはあまりフランス語が得意ではないと分かったので、メアリーは英語に切り替えた。
After talking to Tom for a few minutes, it became obvious that his French wasn't very good, so Mary switched to English.