- 重点词汇
- 防腐
preserve; prevent decay; prevent corrosion; protect against rot; inhibit spoilage
- 保持
maintain; keep; preserve; hold; remain; retain; stay; sustain; keep up; persist; poise; maintenance; preservation; retention; conservation; sustenance; maintained; sustained; holding
- 廉洁
honest; incorruptible; clean; uncorrupted; clean-handed