Adison succeeded in inventing buld after thousands times' try and failure.
Adison succeeded in inventing buld after thousands times' try and failure.
爱迪生失败了几千次才成功地制造了电灯.
Adison succeeded in inventing buld after thousands times' try and failure.
爱迪生失败了几千次才成功地制造了电灯.