主要行车方向 major movement
车道行车方向管制号志 Lane-direction control signal
偏离正常行车方向 Swerve
反方向行车 contra-flow
列车运行方向 current of traffic
两个骑车的人对他们想去的方向上即使有一点点误解就能导致自行车剧烈晃动或失去控制。
Even a small misunderstanding between the riders over the direction in which they want to go can cause the bicycle to wobble worryingly or spin out of control.
如果您曾经这么做过——平举着一个正在旋转的自行车车轮，然后试图将它向任意方向倾斜——您就会知道，这时车轮本身会将您的手往回拽，努力保持在它原来的旋转平面上。
If you've ever held a bicycle wheel while it's turning and tried to reorient it you know that the wheel itself pushes back, trying to remain in its original plane.
德国到处是自行车道，这一点我没有怨言，但是也实在太多了，在每个拐角都要核对指路牌，保证自己的方向正确。
Germany is brimming with cycle paths, and I'm not complaining, but there are almost too many of them. At every corner you're having to check the signs to see that you're still following the right one.
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