单词	o-grade
释义	o-grade noun linguistics : a phase of a root or of an affix that appears in an ablaut series and is characterized by the vowel o (see grade entry 1 sense 4) Word History First Known Use 1891, in the meaning defined above
随便看	type 1 diabetes type 2 diabetes type A Type A star type B Type B star type C type culture type cutter Type F star type family Type G star type gauge type genus type height type I error type II error Type K star type lice type locality Type M star type material type metal type method Type N star

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