put a finger on

基本解释

You shall not put a finger on my daughter.
不许你动我女儿一根毫毛。
This helps put a finger on the business process without an elaborate effort.
这可帮助在不用进行大量细致工作的情况下了解业务流程。
"I knew something was wrong, but I couldn't put a finger on it, " says Paige, 45. "They were two sizes behind in clothes.
“我知道有些不对，但我指不出来，”45岁的paige说，“他们比穿的衣服小两号。

Correctness just doesn't do what it's supposed to do but then also design and design is one of those things it's a little harder to put your finger on initially, but it really is something to bear in mind especially toward terms end when you tackle your own final projects.
正确性“，就是有没有做应该做事情,然后是“设计“,刚开始时，“设计“相对来说比较难一点,但是这是直到这个学期末,都要记住的东西,当你处理的自己的最终方案时。
哈佛公开课 - 计算机科学课程节选

It is hard to put a finger on where the toughest competition to Hong Kong's status as a financial hub will come from.
ECONOMIST: Exchanges
The only thing anyone I talk to can put a finger on as a detraction is that he puts his foot in his mouth.
NPR: Joe Biden, Big Guy from Little State
" Adds Harvard School of Public Health epidemiologist Walter Willett: "It is hard to put a finger on a specific food that prevents cancer in general.
FORBES: Magazine Article