adj. 

塔形的,锥形的
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first water,
first world war,
first-aid,
firstborn,
first-born,
first-chair,
first-chop,
first-class,
firstcomer,
first-degree,
相似单词
pyramidal,
pyramidal tract,
pyramidalis,
pyramidalist,
pyramidane,
pyramidate,
pyramidic,
pyramidical,
pyramiding,
pyramidion,