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例子
The old man would grouch about the noise from the construction site next door every morning.
Instead of enjoying the family gathering, Uncle Bob spent the entire time grouching about various issues.
Whenever there's a delay in public transportation, passengers tend to grouch about the inconvenience.
Lisa tends to grouch when she doesn't get enough sleep.
Despite the beautiful weather, John continued to grouch about having to work on a Saturday.
