desinence

designate的音标为[dɪˈzaɪnɪt] ，基本翻译为“指明；指派；标出；把…命名为”，速记技巧为“de（表否定）+SIGN（标记）+ate（做）→不标记→指明”。

Desinence这个词的词源可以追溯到拉丁语和法语，具体来说，它是由前缀“de-”和词根“-inence”构成的。其中，“de-”表示“离开、否定”，“-inence”则表示“状态、性质、能力”。

变化形式：在词形上，desinence没有明显的变化形式，它是一个单一的单词。

相关单词：

authority（权威）：这个词与desinence有相似的含义，它表示“权威性、权威”。它的词源可以追溯到拉丁语和法语，其中“authourity”是由“author”（作者）和“ity”（性质、状态）构成的。这个词的含义是指具有权威地位的人或机构，具有很高的决策和影响力。

efficiency（效率）：这个词表示“效率、效能”，它的词源可以追溯到拉丁语和法语，其中“eficien”（意为“使有效”）和“cy”（状态、性质）构成的。这个词的含义是指以最小的投入获得最大的产出，具有很高的效率。

influence（影响）：这个词表示“影响、影响力”，它的词源可以追溯到拉丁语和法语，其中“influ”（意为“影响”）和“ence”（性质、状态）构成的。这个词的含义是指能够影响他人的能力或力量，具有很强的传播力和影响力。

以上三个单词都是与desinence相关的常见英语单词，它们在不同的语境中具有不同的含义和用法。每个单词都有其独特的词源和演变过程，反映了英语语言的发展和演变。

常用短语：

1. in vain 徒劳无功

2. at will 随意

3. by oneself 单独地

4. all over 到处

5. in a hurry 匆忙地

6. on purpose 故意

7. at the same time 同时

双语例句：

1. We worked hard in vain, as we couldn"t finish the task on time.

2. She gave me a gift, but I didn"t want it because I didn"t like it at will.

3. I"m sorry, but I can"t help you with your homework because I"m busy at the moment.

4. They are playing football all over the field.

5. I"m sorry, but I can"t meet you at the appointed time because I"m already busy at the same time.

6. He always works hard, but he still doesn"t succeed at will.

7. She likes to do things on her own, so she doesn"t need anyone"s help.

英文小作文：

Doing things on your own is always a challenge, but it can also be rewarding. I like to do things on my own because I can do them at my own pace and in my own way. It"s also nice to have the freedom to do whatever I want without being told what to do or how to do it. However, sometimes it can be difficult to do things on your own because you have to face challenges and difficulties alone. But if you can overcome them, you will feel proud of yourself and you will learn valuable life skills that will help you in the future.