As her glasses are of remarkable strength, and as opticians are not very numerous, there should be no difficulty in tracing her. 阿瑟·柯南·道尔.福尔摩斯归来记.
The only people who did anything in electricity were the telegraphers and the opticians making simple school apparatus to demonstrate the principles. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
I had intended, however, to go the round of the London opticians. 阿瑟·柯南·道尔.福尔摩斯归来记.