改过自新: start with a clean slate; turn over a new leaf; become a new man; correct one's errors and make a fresh start; repent and reform; convert from a bad life to a good one; reform oneself; cor
上轨道: get on the right track; begin to work smoothly; be well under way 短语和例子我们的教学改革慢慢上轨道了。 our educational reform was steadily led onto the correct path. 一切都已上轨道了。 everything is in good order n
