一骨碌 yīgūlu to roll or turn Origin Definitions Defs Strokes Stroke Words Sentences Sents yīgūlu to roll or turn · in one fell swoop 一 yī adverbnumeral [suddenness] Used before a verb to indicate that an action or situation occurs suddenly or unexpectedly.骨碌 gūlu to roll to roll, spin, or turn rapidlyyīgūlu coil 一 yī numeral one one; the number 1; single; alone骨碌 gūlu section (dialect) a section; a short link or length of something