英語翻譯
To （發(fā)明） somthing is not very diffcult.Here are some examples of small but useful inventions.
Sunglasses:As early as 1284 ,the first eyeglasses were invented（被發(fā)明）in Italy .in 1752,James Ayscoyugh used green and blue glasses to protect（保護）eyes from strong light.These first sungiasses were like eyeglasses.In 1929,American Edwin H.Lard invented a new kind of glasses to stoplight coming into people's eyes In 1937,this kind of sunglasses became popular around the word.