visible speech

常见例句

Bell's father had even gone so far as to develop a system of so-called "visible speech" for the deaf.
贝尔的父亲甚至为聋人发明了一套所谓的“可见的语言”。
visible speech sound spectrograph
语图仪
A few jokes will add a final fillip to your speech.
几句笑话会给你的演说添些生气。
He's a fervent believer in free speech.
他是言论自由的强烈信仰者。
The hills were barely visible through the mist.
小山隐没在薄雾中难以看清。
The big rafter is visible in this room.
这间屋子粗大的椽子可以看得见。