As mentioned a little earlier, if your model has a double chin then have them lift their head slightly so that it stretches out the neck area.

正如早先提到的，如果您的拍摄对象有双下巴，就让她稍微仰头，这样脖子就会显得修长，而双下巴也不见了。

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In order to improve bearing capacity and compactness of the roll system, a method of double circular arc conical surface transition curve for roll neck is put forward.

为了提高轧辊的承载能力和辊系结构的紧凑性，提出了对辊颈双圆弧锥面过渡曲线的优化设计方法。

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Method: Treatment of femoral neck fractures using hollow double ends compressive screws and breaking screws.

方法：应用中空双头加压螺纹钉加折断式螺钉治疗股骨颈骨折。

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The basic urn shape relates to that of an Ancient Greek amphora bulbous, with shoulders and a flaring neck, double-handled, and characteristically raised on a foot.

WSJ: Masterpiece: Gilded Abundance, Elegantly Restrained

It's true they have double the number of bones in their neck compared with us - 14 versus seven cervical vertebrae.

BBC: How owls swivel their heads

But in October a 527-patient study sponsored by the French government found that 10% of patients who got neck stents died or had a stroke in the following month--double the complication rate for surgery.

FORBES: Magazine Article