例句 /

A thirty-year-old listener in Vietnam says he cannot see well and doctors have told him he has retinal degeneration.

A thirty-year-old listener in Vietnam says he cannot see well and doctors have told him he has retinal degeneration.

越南一名三十岁的听众说他看东西不清楚,医生已经告诉他是他的视网膜出现衰退。