Last Updated:2025/11/21

Before the trip, she upgraded to a tri-band phone so she could switch frequencies when traveling between Europe and North America.

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Before the trip, she upgraded to a tri-band phone so she could switch frequencies when traveling between Europe and North America.

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旅行の前に、彼女はヨーロッパと北アメリカを行き来するときに周波数を切り替えられるよう、3つの周波数帯に対応した携帯電話に機種変更した。

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