"firsts"音標為/?f??rstz/，基本翻譯為“第一的，最初的；首先的；最先的”。速記技巧為：諧音記憶：“費事”（firsts）為“第一”。

希望以上信息對您有幫助。建議查閱英文詞典以獲得更精準的翻譯。

以下是一些以first為詞源的英文單詞及其變化形式和相關單詞，并附上簡短的解釋和字源。

1. first (原形) - 第一，最初。變化形式：firstly (副詞形式，表示首先) ；firstname (名詞形式，表示姓氏) ；firstborn (形容詞形式，表示長子或首生的) 。相關單詞：firstmate (大副，船上的高級船員) ；foremost (最重要的，首要的) 。字源：來自古英語 fyrst，最初的意思。

2. prefix "first" - (前綴，表示第一或首先) 。相關單詞：prime (首要的，基本的) ；preliminary (預備的，初步的) 。字源：來自拉丁語 prae- (在…之前) 和 first。

3. first-rate - (最高級的，第一流的) 。相關單詞：foremost (最重要的，首要的) 。字源：first-rate 來自 first rate (優秀的，卓越的)。

4. first-hand - (直接來源的，第一手的) 。字源：first-hand 來自 first hand (直接的，一手的)。

5. second - 第二，次等。變化形式：secondly (副詞形式，表示其次) ；second-rate (次等的) 。相關單詞：second-guess (猜測，揣測) 。字源：來自 second (第二的)。

6. prefix "second" - (后綴，表示第二或次等)。相關單詞：second-class (二等公民，次等的人) 。字源：來自 second (第二的)。

以上這些單詞在英語中有著廣泛的應用，并且它們的詞源和變化形式都反映了英語的演變和發展。這些單詞的學習可以幫助我們更好地理解和掌握英語的詞匯和語法。

常用短語：

1. first and foremost

2. first thing in the morning

3. first step

4. first in line

5. first to arrive

6. first to respond

7. first in/among sth

例句：

1. First and foremost, I enjoy the feeling of success when I finish a challenging task.

2. I always wake up first thing in the morning and meditate for 10 minutes to clear my mind.

3. Taking that first step is always the hardest, but once you do, the rest will follow.

4. I am always first in line to volunteer for any worthy cause.

5. When the fire alarm went off, I was the first to arrive at the scene.

6. When someone is in need of help, I am always the first to respond.

7. Among all the candidates, I am the first in terms of experience and skills.

英文小作文：

First impressions are important, but they are not everything. Although first impressions can influence our decisions, we should not be ruled by them completely. Instead, we should approach new situations with an open mind and an objective perspective.

First impressions can be misleading because they are based on limited information and can be affected by our preconceived ideas and biases. Therefore, it is important to approach new situations with an open mind and to gather more information before making a decision.

On the other hand, first impressions can also be valuable because they can help us identify potential problems or risks quickly and efficiently. For example, if someone appears nervous or hesitant during an interview, it may indicate that they lack confidence or experience for the job. In this case, we can take appropriate action to address these concerns before making a final decision.

In conclusion, we should approach new situations with an open mind and an objective perspective, while also considering first impressions as a valuable tool for quickly identifying potential problems or risks.