求翻译：我相信，天道酬勤，在师生的共同努力下，英语不但不会成为他们的绊脚石，为是会变成他们身上的闪光点。是什么意思？

I believed, not only the sun reward attendance, under teacher's and student's joint effort, English cannot become their stumbling obstacle, for is can turn on their body the flashing temperature.