in confidence的音標是["?n k?n?fens?v]。基本翻譯是“在信任中，秘密地”。速記技巧可以是：in肯in，confensiv。

in confidence的英文詞源：

in confidence來源于拉丁語confidere，意為“信任”。這個詞由confidere派生而來，其詞根為fidere，意為“信任”。

變化形式：

1. 復數形式：confidences。

2. 過去式和過去分詞形式：confided。

相關單詞：

1. confide（v. 信任；傾訴） - 詞根fidere加上前綴con-，表示“共同”，因此該詞表示“共同信任”。

2. confidence（n. 信任；信心） - 由in confidence變化而來，表示“在信任的基礎上”。

3. confidential（adj. 機密的；受信任的） - confidenc的形容詞形式，表示“機密的，受信任的”。

4. confederate（n. 同盟；adj. 聯合的；adj. 聯邦的） - confidenc的另一個形容詞形式，表示“聯合的，聯盟的”。

5. confiscate（v. 沒收） - confiscate由confiscate和confiscation組成，其中confiscation由confiscate派生而來，表示“沒收”之意。

6. confuse（v. 混淆；使困惑） - confuse由confuse和confused組成，其中confused為confuse的過去分詞形式，表示“困惑的”之意。

7. confine（v. 限制；禁閉） - confine由con和fain組成，表示“共同”和“限制”之意。

8. confident（adj. 有信心的；自信的） - confident由confident和confidence組成，其中confidence意為“信心”或“信任”。

9. confound（v. 使困惑；使混亂） - confound由confound和confused組成，其中confused為confound的過去分詞形式，表示“困惑”之意。

10. confederacy（n. 同盟；聯盟） - confederacy由confederate和confederacy組成，其中confederate意為“聯盟”或“同盟”。

常用短語：

1. in confidence

2. with confidence

3. have confidence in

4. have faith in

5. trust in

6. rely on

7. have faithfulness to

例句：

1. I can confide in my friend with confidence because I know they will always be there for me.

2. He has confidence in his abilities to succeed in the job market.

3. She has faith in her ability to overcome any challenge and trusts that she will succeed.

4. We rely on each other for support and have faithfulness to each other in our relationship.

5. He cannot rely on his boss to keep his promises, as they have a history of changing their minds frequently.

6. We must have confidence in our abilities to achieve our goals, even when faced with difficulties.

7. Trust is essential in any relationship, as it allows us to share our most personal and confidential information with each other.

英文小作文：

Confidence is a vital component of success in life. It allows us to believe in ourselves and to take risks, knowing that we have the support of those around us. When we have confidence, we are able to face challenges head on and emerge victorious. However, confidence is not something that comes easily to everyone, as it requires a strong sense of self-belief and trust in others. Therefore, it is essential to have a support system of friends and family who can provide us with the encouragement and motivation we need to succeed. Additionally, it is important to remember that confidence is not only about outward appearance, but also about inner strength and belief in our abilities. By cultivating confidence, we can unlock our true potential and achieve our goals.