李阳疯狂英语口语突破mp3 5513

thirteen

By means of

He succeeded by means of his perseverance¹.

He tryed to explain by means of five languages.
 

1 perseverance   

n.坚持不懈，不屈不挠

参考例句：

• It may take some perseverance to find the right people.要找到合适的人也许需要有点锲而不舍的精神。
• Perseverance leads to success.有恒心就能胜利。