Explain the meaning of the idiomatic expressions in the following sentences: - They arrived at the eleventh hour. - Her explanation was as clear as mud. - In those years, we led a dog's life.

- They arrived at the eleventh hour: This expression means that someone arrived or completed something just in time, at the last possible moment before it was too late.

- Her explanation was as clear as mud: This expression means that the explanation given was confusing and unclear, making it difficult to understand.

- In those years, we led a dog's life: This expression means that during that time period, life was difficult, unpleasant, or full of hardship. It implies that the person or people in question were living in poor conditions or facing many challenges.

- They arrived at the eleventh hour:
- Meaning: They arrived at the last possible moment, just in time.

- Her explanation was as clear as mud:
- Meaning: Her explanation was very unclear and difficult to understand.

- In those years, we led a dog's life:
- Meaning: We lived in a difficult and unpleasant way, like a dog.