Old hand
01
老手, 专家
(of a person) having extensive knowledge about or a lot of experience in a particular activity or job
Idiom
Informal
例子
An old hand advised me that the fireman approach would suit my scrawny physique.
一位老手建议我，消防员的方法适合我瘦弱的体格。
John is the old hand in the marketing department; he's been with the company for over 20 years.
约翰是营销部门的老手；他在公司已经工作了20多年。
