a plea for clemency的用法和样例：
- They addressed to the governor a plea for clemency.
- They addressed to the governor a plea for clemency .
- The lawyer made a fervent plea for clemency.
- This week, the Chinese government executed Briton Akmal Shaikh for heroin trafficking, despite a plea for clemency by the British government on grounds that he was mentally ill.
- The prisoner made a plea for mercy.