tā běn lái méi dǎ suàn xué fǎ yǔ，hòu lái hái shì xuǎn xiū le yī mén fǎ yǔ kè

她本来没打算学法语，后来还是选修了一门法语课。

She originally didn't plan to learn French, but ended up taking a French elective course.