似乎是 一成
yī chéng
ZH
One-tenth; 10 percent; a small proportion
这里的降水只有去年的一成。
The rainfall here is only one-tenth of last year's.
Etymology
This word originates from ancient Chinese measurement systems. "Chéng" originally referred to a 10% graded proportion, so "yī chéng" has meant 10 percent since the pre-Qin period.
Memory Aid
Break the word into characters: "一" means one, "成" means a tenth-grade portion, so together they mean one tenth portion. Think of "one grade out of ten equal parts" to remember the meaning.
Collocations
一成不变一成胜算增产一成下降一成
Synonyms
百分之十十分之一
Antonyms
九成十分之九
Related Words
三成七成比例百分比
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