approximation

n. /əˌprɑːk.səˈmeɪ.ʃən/ C1

近似值；估算

An estimate or value that is close to the truth.

仙境例句

Alice guessed she was nine inches tall, but it was only an approximation.

爱丽丝猜自己有九英寸高，不过这只是个大概的估计。