简单释义：

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adj. 拐弯抹角的；含混不清的；冗长费解的；弯弯曲曲的

网络 曲折的；转弯抹角的；弯曲的

完整释义：

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adj.

1.曲折,弯弯曲曲的;转弯抹角的
2.弯扭的,曲折的(路、河等),盘旋的
3.多弯曲的
4.不正派的,不正当的,骗人的(政策等)
5.委婉的(话)
6.拐弯抹角的
7.非法的

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例句：

1. Since the inception of China's rural credit cooperatives, it has gone through a difficult and tortuous course of development.
   我国的农村信用社自建立以来，经历了一个艰难而又曲折的发展历程。

2. Game , the player needs a total screen control of the top racers in the tortuous routes within a total of three times in the air races .
   游戏中，玩家总共需要控制画面上方的赛车在曲折的赛道内进行总共三圈的拉力赛事。

3. The dark, thin, more tortuous fibers are elastic (or yellow) fibers.
   深色，细丝样，有卷折的为弹性纤维。

4. having reached the summit of his vengeance by a long and tortuous path , he saw an abyss of doubt yawning before him.
   当他经过一条艰苦漫长的道路达到复仇的高峰以后，他在高峰的那一边看到了怀疑的深谷。

5. However this relationship is tortuous, sudden terrible event hard hit our tree firmly in hong, loving, beauty of trauma gradually healing.
   然而这段恋情曲折艰难，突如其来的可怕事件袭击了美嘉，在弘树坚定的爱的守护下，美嘉的心灵创伤渐渐愈合。

6. The heart appeared to BE of aortic type with a tortuous and prolonged aorta. Culture of the sputum showed growth of Streptococcus pneumonia.
   心脏呈动脉型，主动脉曲屈延长。痰培养肺炎双球菌生长

7. Sino-Soviet debate directly affected Chinese socialist construction and made it tortuous .
   中苏论战对中国社会主义建设道路的曲折发展有著直接的因果关系。

8. Although a few tortuous axons could be found, there were no irregular swelling and disconnecting axons.
   结果在荧光显微镜下，神经轴突粗细较均匀，少数有弯曲现象，未见不规则肿胀及断裂。