N-COUNT If someone is an old hand at something, they are very skilled at it because they have been doing it for a long time. 老手 [oft N 'at' n]
An old hand at photography, Tim has been shooting wildlife as a hobby for the last 13 years.
蒂姆是一位摄影老手,在过去13年里一直以拍摄野生动物为业余爱好。
She's an old hand at dealing with the press.
她是对付新闻界的一位老手。
An old hand at photography, Tim has been shooting wildlife as a hobby for the last 13 years.
蒂姆是一位摄影老手,在过去13年里一直以拍摄野生动物为业余爱好。
The answer is--this goes way back-- it's an old tradition and they used to have to do this by hand.
答案要追溯到很久之前,这是个古老的传统,他们过去用手工计算
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