“沿”怎么读？

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那个年轻人领着马克·赖尔沿走廊而去。The young man led Mark Ryle along a corridor.劳拉松开离合器踏板，沿车道慢慢驶离。Laura let out the clutch and pulled slowly away down the drive.她选了低速挡小心翼翼地沿小径下行。She selected a low gear and started down the track carefull...