eutherian

eutherian的音标为[juːˈθɪərɪən]，基本翻译为“真兽类”，速记技巧为“真兽（eutherian）有毛的”。

Eutherian这个词来源于希腊语，意为“真正的，真实的”。它的变化形式包括复数Eutherians和过去式、过去分词以及现在分词形式eutherizing。

相关单词：

1. Eutheria - 哺乳动物的一个分类，包括人类、狗、猫等。

2. Eutherian mammal - 哺乳动物中的真兽类，是哺乳动物中最广泛的一类。

3. euthermic - 健康的，体温正常的。

4. euthymia - 指一种精神状态，即情绪稳定，无焦虑、无抑郁等。

5. euthanasia - 指一种死亡方式，即通过减轻痛苦来加速死亡，通常用于动物或临终病人。

6. euthanize - 意为“使无痛致死”，常用于动物或植物的死亡过程。

7. euthanize drug - 用于减轻痛苦的药物。

8. euthanatophobia - 一种对死亡或痛苦的恐惧症。

9. euthalibi - 意为“死亡的记忆”，是一种关于死亡和生命的哲学观念。

10. euthalibi-logical - 指对死亡和生命有深入思考的哲学观点。

以上这些单词都与Eutherian这个词有密切的联系，涵盖了生物学、医学、心理学和哲学等多个领域。

Eutherian常用短语：

1. Eutherian mammal：真兽类哺乳动物

2. Eutherian classification：真兽类分类

3. Eutherian traits：真兽类特征

4. Eutherian evolution：真兽类进化

5. Eutherian diversity：真兽类多样性

6. Eutherian diversity in Africa：非洲的真兽类多样性

7. Eutherian phylogeny：真兽类系统发育

例句：

1. The eutherian mammal is a type of mammal that has a backbone and is divided into two major groups: the monotremes and the placentals.

2. The eutherian classification has been greatly influenced by the evolution of the placenta, which allows for the exchange of nutrients between mother and fetus.

3. The eutherian traits include a large number of hair, warm blood, and a well-developed sense of smell and hearing.

4. The eutherian evolution has been greatly influenced by the evolution of the placenta, which has led to the development of many new species and adaptations to different environments.

5. The eutherian diversity in Africa is one of the most significant in the world, with many unique species found here.

6. The eutherian phylogeny has been studied extensively, with many new discoveries being made each year.

英文小作文：

The Eutherian Mammal: An Evolutionary Journey

The eutherian mammal, also known as the true mammal, is a group of animals that have a backbone and are divided into two major groups: the monotremes and the placentals. This group has undergone many changes throughout its evolution, leading to the development of many new species and adaptations to different environments.

The evolution of the placenta has had a significant impact on the eutherian mammal. This organ allows for the exchange of nutrients between mother and fetus, which has led to the development of many new species and adaptations to different environments. The eutherian mammal has also undergone changes in its traits, such as a large amount of hair, warm blood, and a well-developed sense of smell and hearing. These changes have allowed them to adapt to various environments and have become one of the most diverse groups of mammals on Earth.

Today, the eutherian mammal is found all over the world, but its diversity is most prominent in Africa, where many unique species have been discovered. The eutherian mammal has come a long way since its origin millions of years ago, and continues to evolve and adapt to its changing environment. Understanding the eutherian mammal and its evolution is crucial for understanding the diversity and evolution of all mammals, as well as our own origins and evolution.