old hand
科学界的老手
someone with experience in the scientific community
开车的老手
an old hand at driving
这一行的老手
a veteran in this trade
老手带新手。
An experienced person guides someone who is less experienced.
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。