Correct

老手

/ lǎoshǒu / 
Strokes

Definition

experienced person/an old hand at sth

Example

As a Noun

old hand; (old) stager; veteran

1
Chǔlǐ
处理
zhè
这
lèi
类
shìqing
事情
  
,
tā
他
shì
是
lǎoshǒu
老手
  
。

He is an old hand in dealing with such things.

2
Tánpàn
谈判
lǎoshǒu
老手

veteran negotiator