周折

周折 [zhōu zhé]

1. ■ twists and turns; setbacks; a complicated [troublesome] course of development; trouble; complication; tortuous course:

大费周折 cause a lot of trouble;

几经周折才告成功。 Only after many setbacks was success achieved.

从那时起他在事业上一直没有遇到周折。 Since that time there has never been any setback in his career.