suīrán / dàjiā / dōu / yòng / shǒujī / dàn / nǎinai / jiālǐ / hái / bǎoliúzhe / yí / bù / gùdìngdiànhuà

虽然大家都用手机，但奶奶家里还保留着一部固定电话。

Although everyone uses mobile phones, Grandma still keeps a landline at home.