n. (pl. -lae ) 1.【生物学】小柱；【动物；动物学】(爬虫的)中耳小骨；(螺的)轴柱，壳轴。 2.【植物；植物学】蒴轴，果轴。
a small column (or structure resembling a column) that is a part of a plant or animal
例句与用法
1.
Others prefer an " open " procedure , especially in more complicated cases ; they make a small incision across the columella , the vertical strip of tissue separating the nostrils 但有些较复杂的手术往往需要在鼻小柱上做一个切口，这样在术后就会在鼻小柱上留下一个不明显的瘢痕。
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