Notes

① People that are going to lose the ability to speak use this software to record their voices．即将丧失说话能力的人们使用这个软件来录制他们的声音。

句中“that are going to lose the ability to speak”为定语从句，修饰先行词people。

② Laurence used to play and sing in a band, … 劳伦斯过去曾在乐队里演奏和歌唱，……

used to… 意为“过去常常……”，后面接动词原形。

③ To be able to read to his son, Brewer decided to open a voice bank for him．为了能读给儿子听，布鲁尔决定为他建一个语音库。

句子中的不定式结构“To be able to read to his son”，表示目的。