我不能心算一长串数字的加法，那是计算器做的事情。
That's what jacks are for. I can't add long columns of figures in my head.
当他在脑子里计算佣金时，眼睛瞳孔里则闪现出一长串数字。
The pupils of his eyes flashed digital Numbers as he calculated the commission in his head.
在开始记一长串数字前，他们先四个四个细分，然后再将这些0000到9999的数字段和某个人或事物关联起来。
Before starting to memorise a number, they associate a person or object with each four-digit number from 0000 to 9999.
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