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The first definition of "fail" in the Cambridge dictionary is: "to not succeed in what you are trying to achieve or are expected to do".
Another definition of "fail" in the Cambridge dictionary is: "to not do something that you should do".
I am confused. When does "fail" imply an unsuccessful attempt and when does it imply a lack of attempt? For example in the following sentence
- The government failed to control soaring prices.
Does it imply the government tried to control prices but it was not successful?.
Or does it imply the duty of government was to control prices but it did not do it? Or maybe did not do anything about it at all despite the fact that it could?
Some other examples:
- The mechanic failed to repair the car.
- The mother failed to soothe his child.
Can you please give me some examples to show where each one of the two above definitions of the word "fail" is true?