egoistical的音標為[i?g???z?st?kl]，基本翻譯為“利己的；自私的”，速記技巧為：ego（自我）+istical（形容詞后綴，…的）→利己的。

Egoistical 的英文詞源是拉丁語，意為“自私的”。其變化形式包括過去式 egoistically，現在分詞 egoistically，過去分詞 egoistically。相關單詞包括 selfish（自私的），self-centered（以自我為中心的），self-interested（自私自利的）等。這些單詞都與egoistical有著相似的含義，強調個人利益高于集體或他人的利益。

Egoistical 的含義強調個人利益高于一切，這種行為和態度在很多情況下是被社會所批判的。它提醒我們要有集體意識和責任感，關注他人的利益和社會的整體發展。

egoistical的常用短語：

1. be egoistical about (doing) sth：對某事很自私

2. egoistical behavior：自私的行為

3. egoistical traits：自私的特點

4. show egoistical behavior：表現出自私的行為

5. act egoistically：自私地行動

6. be motivated by selfishness：出于自私的動機

7. selfish egoistical：自私的

雙語例句：

1. He is always egoistical about money. 他總是對錢很自私。

2. She showed egoistical behavior when she refused to share the dessert with her friends. 當她拒絕和朋友分享甜點時，她表現出自私的行為。

3. We need to work together, not be egoistical about our own interests. 我們需要共同努力，而不是只顧自己的利益而表現出自私。

4. His egoistical attitude towards work caused a lot of problems for the team. 他工作中自私的態度給團隊帶來了很多問題。

5. She acts egoistically and doesn"t consider the impact of her actions on others. 她以自我為中心，不考慮自己的行為對他人的影響。

6. He is motivated by selfishness and is always looking for ways to gain advantage over others. 他的行為出于自私，總是尋找機會在別人身上占便宜。

7. Selfishness and egoism are not acceptable values in a healthy society. 在一個健康的社會中，自私和自我主義是不可接受的價值觀念。

英文小作文：

Selfishness and Egoism are common human traits that can have negative impacts on our relationships and interactions with others. When we act selfishly, we may disregard the feelings and needs of others and cause conflicts and unhappiness in our relationships. Conversely, when we act egoistically, we may focus only on our own interests without considering the impact of our actions on others. This can lead to feelings of isolation and loneliness, as well as a lack of empathy and understanding for others" experiences and perspectives.

However, it is important to remember that we are all interconnected and have a shared responsibility to respect and care for each other. By being more considerate and empathetic towards others, we can build stronger relationships and create a more harmonious society. We should strive to be more selfless and compassionate, and avoid being too self-centered and focused on our own interests at the expense of others. This will help us to develop better relationships with others, build stronger communities, and create a more inclusive and supportive environment for everyone.