头灯也好，胸灯也好，手持式电筒也好，无论哪样，请至少保证有帮你照亮道路的工具。
Whether you prefer a headlamp, a chest lamp, or a handheld flashlight, bring something along to light your way.
奥迪汽车的一些特色也整合在这款自行车中，例如LED灯、皮带传动、铝制和碳纤维的零件和碟式刹车。
Audi features are integrated into the cycle including LED lighting, a belt drive, aluminum and carbon fiber components, and disk brakes.
仔细观察一下这张有一盏落地式火炬灯的照片，左侧是在f/22的光圈拍摄的：火炬灯为焦点，你可以看出背景中的树木和房屋，这就是我们说的大景深。
The left side was shot at f/22: The torch is in focus, and you can make out the tree and the house behind it. That's a large DOF.
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