一之为甚 yīzhīwéishèn once is enough Origin Definitions Defs Strokes Stroke Words Sentences Sents 一 yī numeral one one; the number 1; single; alone之 zhī particle [nominalizer] Used between a subject and a verb to turn the phrase into a noun-like unit.为 為 wéi verbpreposition to be to be; to become; to act as; to serve as; to take as甚 shèn preposition to exceed to exceed; to be more than