Someone who figures out how much something will cost or take to do.
The estimator gave us an idea of how much the repairs would cost.
估價師讓我們了解了修理費用的大致數額。
A thing that helps measure or guess amounts, like distance or time.
The scientist used an estimator to guess how fast the water was flowing.
科學家使用估算器來猜測水流的速度。