单词nitpicker
网络: 爱吹毛求疵的人；挑剔着；吹毛求疵者
I hate to sound like a nitpicker , but I found a comma missing in your third paragraph.
我很讨厌听起来好像是在挑剔。但是我发现你文章的第三段里少了一个逗号！
A nitpicker who obsesses over each dime is too tense to live with market risks.
对每一分钱都斤斤计较的人，由于过分敏感，无法承受市场风险。
The nitpicker who criticizes her is her best friend Laura.
唯一批评她的是她的好朋友劳拉。