单词：symphyla
音标：['simfilə] ；
综合纲
n. pl. An order of small apterous insects having an
elongated body, with three pairs of thoracic and about nine pairs of
abdominal legs. They are, in many respects, intermediate between
myriapods and true insects.
elongated body, with three pairs of thoracic and about nine pairs of
abdominal legs. They are, in many respects, intermediate between
myriapods and true insects.
词型变化：名词复数形式 : symphylas