declines

declines

形容词: 1. declining 2. deteriorating 3. decreasing 4. waning 名词: 1. decline 2. deterioration 3. decrease 4. reduction

词语辨析：

decline 和 deterioration 都表示衰退或下降，但前者更常用于表示数量、价值或质量的减少，后者则更常用于表示状态或条件的恶化。 decrease 和 reduction 都表示数量、程度或规模的减少，但前者更常用于一般性的减少，后者则更常用于特定目标或需求的减少。

词汇扩充：

1. economic decline 经济衰退 2. population decline 人口下降 3. mental decline 精神衰退 4. academic decline 学业下降 5. moral decline 道德沦丧

近义词：

decrease, diminish, dwindle, reduce

反义词：

increase, rise, improve, grow

柯林斯词典：

decline: 1. If something declines, it becomes less in quantity, importance, or strength. 2. If the quality, amount, or strength of something declines, it becomes worse, smaller, or less. 3. The decline of something is the process of its becoming worse, smaller, or less in amount. 4. A decline is a continuous decrease in the number, value, quality, or strength of something. 5. If you decline something or decline to do something, you politely refuse to accept it or do it. 6. If something declines, it becomes less successful or powerful than it was in the past.

牛津词典：

decline: 1. (verb) Become smaller, fewer, or less; decrease. 2. (verb) Politely refuse (an invitation or offer). 3. (noun) A gradual and continuous loss of strength, numbers, quality, or value. 4. (noun) A condition of gradual deterioration. 5. (noun) The process of declining or deteriorating; a downward slope.

用法：

1. The number of participants in the marathon has been steadily declining over the years. (declining) 马拉松比赛的参与人数近年来持续下降。 2. The company's profits have experienced a significant decline in the last quarter. (decline) 公司的利润在上个季度有了明显的下降。 3. The decline in the quality of education is a matter of concern. (decline) 教育质量的下降是一个令人担忧的问题。 4. The deterioration of the situation in the region is alarming. (deterioration) 地区局势的恶化令人担忧。 5. There has been a decrease in the crime rate in the city. (decrease) 城市的犯罪率有所下降。 6. The reduction in prices has attracted more customers to the store. (reduction) 价格的降低吸引了更多顾客光顾该店。

例句：

1. The population of the country is in decline. 该国的人口在减少。 2. The company's profits have declined by 20% this year. 公司今年的利润下降了20%。 3. She politely declined the invitation to the party. 她礼貌地拒绝了参加派对的邀请。 4. The decline of the Roman Empire was a gradual process. 罗马帝国的衰落是一个逐渐的过程。 5. The decline in sales has forced the company to make budget cuts. 销售额的下降迫使公司进行预算削减。 6. The city has experienced a decline in air quality due to increased pollution. 由于污染的增加，该城市的空气质量出现了下降。 7. The decline in customer satisfaction has led to a loss of business. 顾客满意度的下降导致了业务的损失。 8. The decline of traditional industries has resulted in high unemployment rates. 传统工业的衰落导致了高失业率。 9. He is showing signs of mental decline due to old age. 由于年老，他正显示出精神衰退的迹象。 10. The decline in academic performance is a concern for parents and teachers. 学业表现的下降让家长和老师担忧。 11. The country is facing a moral decline as corruption becomes prevalent. 随着腐败问题普遍存在，该国面临道德沦丧的问题。 12. The decline of the once mighty empire is a cautionary tale. 曾经强大的帝国的衰败是一个警示性的故事。 13. The organization is experiencing a decline in membership. 组织的成员人数正在减少。 14. The decline in interest rates has led to an increase in borrowing. 利率的下降导致了借贷的增加。 15. The decline in production is attributed to a lack of resources. 生产的下降归因于资源的缺乏。 16. She politely declined his offer to help. 她礼貌地拒绝了他的帮助提供。 17. The decline of the company can be traced back to poor management decisions. 公司的衰落可以追溯到糟糕的管理决策。 18. The decline in oil prices has had a negative impact on the economy. 油价的下降对经济产生了负面影响。 19. The decline in customer satisfaction has resulted in a loss of business. 顾客满意度的下降导致了业务的损失。 20. The decline of traditional values is a concern for many people. 传统价值观的衰落是许多人关注的问题。