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1·The only road access is a tortuous mountain route.

惟一的通路是一条弯弯曲曲的山路。《柯林斯英汉双解大词典》

2·In the intergranular spaces of rocks, however, fluid must flow around and between grains in a tortuous path; this winding path causes a resistance to flow.

然而，在粒间孔发育的岩石中，流体必须在颗粒周围的曲折通道中流动；而这种曲折通道会对其流动产生阻力。

3·We have travelled a tortuous road.

我们走过了曲折的道路。

4·The way ahead is tortuous.

前面的路是曲折的。

5·Life is but a hard and tortuous journey.

人生即是一段艰难曲折的旅程。

6·The J-15 has followed an even more tortuous route.

而歼-15有更曲折的历史。

7·The future is bright, but the path ahead will be tortuous.

前途是光明的，但今后的道路将是曲折的。

8·EUROPE's companies negotiate a costly and tortuous patent regime.

欧洲企业在设法应对既费用高昂又纷繁复杂的专利制度。

9·The second has involved a tortuous row over imported second-hand cars.

第二次是关于二手汽车的进口问题，双方有过曲折的争吵。

10·Improving regulation is a tortuous process, as new chemical rules show.

新的化学物品条例表明，完善管控过程曲折复杂。