项目推进得并不顺利，中间经历了很多周折和反复修改。

Xiàngmù tuījìn de bìng bù shùnlì, zhōngjiān jīnglì le hěn duō zhōuzhé hé fǎnfù xiūgǎi.

The project did not progress smoothly; it went through many twists and repeated revisions.

这次办签证经历了不少周折，终于在出发前一天拿到了。

Zhè cì bàn qiānzhèng jīnglì le bù shǎo zhōuzhé, zhōngyú zài chūfā qián yì tiān ná dào le.

There were many complications in getting the visa this time, but I finally received it the day before departure.

要是当初少一点周折，我们现在可能已经合作很多年了。

Yàoshi dāngchū shǎo yìdiǎn zhōuzhé, wǒmen xiànzài kěnéng yǐjīng hézuò hěn duō nián le.

If there had been fewer complications at the beginning, we might have already been working together for many years.