old hand

1. 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. 蒂姆是一位攝影老手，在過去13年里一直以拍攝野生動物為業(yè)余愛好。