arithmetical operation的用法和樣例：
例句
- It is unnecessary to go to all that arithmetical trouble when there is a simple and more accurate way to get the result.
當存在一種簡單而又更為精確的方法以得出結果時，再去用一系列麻煩的算術運算就毫無必要了。 - A device used to perform arithmetic operations and is small enough to be conveniently placed on a desk.
用於進行算術運算並且小到可以很方便地置放台上使用的裝置。
