diurnal

diurnal的音标为[ˌdaɪˈnɜːrən] ，基本意思是“每日的，一昼夜的”。其速记技巧是：di-昼夜，urnal-文字，整体意思是“每日记录的文字”。

Diurnal这个词源自拉丁语，意思是“一天的，白天的”。它的变化形式主要有复数形式diurnals，过去式形式diurned和现在分词形式diurning。

相关单词：

1. Circadian：这个词是由circa（大约）和diurnal（白天的）组成的，表示大约一天24小时的周期性活动或变化。

2. Diurnal cycle：昼夜周期，指的是一天的循环。

3. Nocturnal：这个词源自拉丁语noctis（夜晚的），与diurnal相反，表示夜间活动的。

4. Diurnal movement：白天的活动，指的是在白天进行的活动。

5. Diurning：正在进行昼夜交替的过程中。

6. Diurnality：白天的习性，指的是动物或植物在白天活动的习性。

7. Diurning light：白天的光线，指的是在白天出现的自然光线。

8. Diurning animals：白天活动的动物。

9. Diurnal behavior：白天的行为，指的是在白天进行的各种活动和行为。

10. Diurnal rhythm：昼夜节律，指的是生物体随着昼夜交替而发生的周期性变化。

常用短语：

1. diurnal rhythm 昼夜节律

2. diurnal variation 日变化

3. diurnal cycle 日周期

4. diurnal shift 昼夜交替

5. diurnal cycle of light 日光昼夜周期

6. diurnal behavior 昼夜行为

7. diurnal activity 昼夜活动

例句：

1. Birds have a strong diurnal rhythm, flying high in the sky during the day and sleeping at night.

2. The temperature shows a diurnal variation, rising in the morning and falling in the evening.

3. The diurnal cycle of light affects the behavior of many animals, causing them to move around at different times during the day.

4. The sun rises in the east and sets in the west, creating a diurnal cycle of light and dark throughout the day.

5. Animals often shift their activity patterns during the diurnal shift, adapting to the changing light conditions.

6. People"s activities also show a diurnal pattern, with most activities taking place during the daytime.

英文小作文：

My daily routine is influenced by the diurnal rhythm. I wake up early in the morning and take a walk outside before the heat of the day sets in. Then I have my breakfast and start my day"s work, which usually involves studying or working on my laptop. During the day, I keep busy with various tasks, but as the sun sets, I find myself relaxing and unwinding, often watching TV or reading a book. Before I know it, it"s time for bed, and I fall asleep with the comfort of knowing that another day has passed peacefully. The diurnal rhythm is a natural cycle that we all adapt to, and it shapes our daily lives in many ways.