英语
西班牙语
英语
西班牙语
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单语范例（未经PONS编辑处理）
The head is triangular and the snout is long with the mouth located on the underside.
en.wikipedia.org The frontal scales are longer than their distance from the end of the snout and shorter than the parietal scales.
en.wikipedia.org The snout has polygonal rugose scales, the back of the head has small granules.
en.wikipedia.org The premaxilla, the bone forming the front of the snout, carries five teeth.
en.wikipedia.org The head is elliptical, depressed, slightly distinct from neck with a short, rounded snout and large nostrils.
en.wikipedia.org