deleterious

deleterious的音标为[ˌdɪləˈtɪəs]，基本意思是“有害的；致残的；恶性的”。其速记技巧为：联想记忆，将“deleterious”拆分为“de（去掉）＋leter（字母）＋ous（形容词后缀）”，表示去掉字母后变得有害。

"deleterious"这个词的词源可以追溯到拉丁语"delectus"（被挑选的）和"littera"（字母），组合起来表示被挑选出来的有害的。这个词在英语中的使用已经有一百多年的历史。

变化形式：

过去式：deteriorated

过去分词：deteriorated

现在分词：deteriorating

相关单词：

1. "contaminate" - 这个词和"deleterious"有相似的含义，都表示有害的，可以互相替换使用。

2. "toxic" - 这个词表示有毒的，也可以用来描述有害的物质或环境。

3. "malicious" - 这个词表示恶意的，可以用来描述有害的行为或言语。

4. "harmful" - 这个词是最常用的描述有害的词汇之一，可以用来描述各种有害的事物。

5. "poisonous" - 这个词表示有毒的，也可以用来描述有害的生物或环境。

6. "deleterious effect" - 这个短语可以用来描述有害的影响或效果。

7. "deleterious substance" - 这个短语可以用来描述有害的物质或元素。

8. "deleterious agent" - 这个词组可以用来描述有害的物质或因素，通常用于科学或医学领域。

9. "deleterious environment" - 这个短语可以用来描述一个对生物有害的环境。

10. "deleterious behavior" - 这个词组可以用来描述有害的行为或习惯。

常用短语：

1. deleterious effect

2. harmful effect

3. adverse effect

4. toxic effect

5. damage to health

6. harm to body

7. negative impact

例句：

1. Exposure to toxic substances can have deleterious effects on the human body.

2. Overexercising can have a harmful effect on your joints.

3. Poor diet and lack of exercise can have adverse effects on your health.

4. The drug has a toxic effect on the liver.

5. The damage to the environment caused by deforestation is irreversible.

6. Smoking can harm your body and increase your risk of various diseases.

7. The negative impact of social media on mental health is becoming increasingly apparent.

英文小作文：

Deleterious Effects of Poor Habits

Habits can have a profound impact on our lives, whether positive or negative. Smoking, overeating, lack of exercise, and other unhealthy habits can have deleterious effects on our physical and mental health. Exposure to toxins and other harmful substances can also have adverse effects on our bodies, leading to various diseases and conditions.

On the other hand, healthy habits such as regular exercise, a balanced diet, and sufficient sleep can have a positive impact on our overall well-being and long-term health. It is therefore essential to be mindful of our habits and make conscious efforts to adopt healthy ones to ensure a happy and fulfilling life.