Positioning: Tilting your head back straightens out the line to your stomach.

定位：头向后倾让喉咙到胃的通道变直。

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Tilt: Back from face; tilting it over face will make the face appear shorter.

戴帽子的倾斜度：尽量往后，离你的脸距离远会让你的脸看上去短一点。

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First, make sure the driver's seat is at a 90-degree angle-not tipped back-to prevent your head from tilting forward, and that both you and your passenger have plenty of legroom.

首先，保证驾驶座呈90度角而不是向后倾斜，以防止你的头倾斜，同时你和你的乘客也有足够的腿部空间。

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