研究目的我家对门住着一位盲人阿婆,因为家中只有老太太一人,每次打电话她总是找我们家帮忙。阿婆还告诉我,有时我家没有人,她只好自己拨电话,所以经常打错电话,白白浪费了电话费还常常遭到对方的谩骂。有一次帮阿婆拨完电话,我想要是装一台阿婆自己能拨打的电话机该多好。 Research purpose My family lived in the door with a blind lady, because there was only one lady in her family. Every time she called, she always sought help from our family. My grandfather also told me that sometimes my family had no one. She had to dial the phone by herself, so she often called the wrong number, wasted telephone charges and was often embarrassed by the other party. Once I helped my grandmother dial the phone, I wanted to install a phone that my grandpa could call.