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English Idiom: Tough nut to crack
Any problem that’s hard to solve is a tough nut to crack.
This idiom means every solution is contained within a challenging problem.
If you break the problem, you can get to the answer inside.
Many people work very long hours.
They would prefer to work less, but they and their companies must learn how to do this.
The problem of long working hours in Japan is a tough nut to crack.
Flesch-Kincaid Readability Test
This post is simple and easy to read.
It’s likely to be understood by someone with at least a 6th-grade education (age 11).
On the Flesch-Kincaid reading-ease test, this post scores 83.
The easier a passage is to read, the higher the score on a scale of 0 – 100.
