"first-degree"的音標為[?f??rst-deɡ?]，基本翻譯為"第一程度的；第一級的"。速記技巧可以考慮使用首字母縮略詞記憶法，即"F D G"，分別代表"第一程度"（First Degree）的首字母。

First-degree這個詞源可以追溯到拉丁語“prima gradis”，意思是“第一等級”或“第一程度”。它的變化形式包括復數形式“first degrees”和過去式“first-degreed”。

相關單詞：

1. Degree：這個詞在英語中有多種含義，包括程度、等級、學位等。在詞源上，它來自拉丁語“gradus”，意為“步伐”或“步驟”。

2. Advanced degree：表示高等學位，是degree的進一步使用，強調更高水平的學術資格。

3. First-year degree：表示本科階段的學位，與高級學位或研究生學位相對應。

4. First-degree burn：一級燒傷，這個詞由first-degree和burn兩個部分組成。它指的是皮膚淺層的燒傷，通常伴有疼痛和發紅。

5. First-degree approximation：一級近似，這個詞由first-degree和approximation組成。它指的是對一個數學或物理問題的近似解，通常是最接近真實情況的解。

6. First-degree cousin：一級表親，這個詞由first-degree和cousin組成。它指的是與某人具有同一父母（通常是父親或母親）的兄弟姐妹的孩子。

7. Degree day：表示某種天氣現象可能出現的天數，通常用于預報氣溫或降水量的變化。這個詞是由degree和day組成的合成詞。

8. First-degree language：第一級語言，這個詞指的是一種語言被認為是廣泛使用的、重要的或具有特殊地位的語言。

9. Degree of difficulty：難度等級，這個詞是由degree和difficulty組成的合成詞，表示某種任務或活動的難易程度。

10. First-degree justice：一級公正，這個詞表示一種公正的概念，強調對所有人平等對待和公平對待的重要性。

first-degree短語：

1. first-degree burns 一度燒傷

2. first-degree approximation 一級近似

3. first-degree polynomial 一元一次方程

4. first-degree relatives 一級親屬

5. first-degree murder 一級謀殺

6. first-degree relatives (FDR) 一級親屬關系

7. first-degree obstruction of airway 一級氣道阻塞

例句：

1. He received a first-degree burn in a fire.

2. The approximation is only first-degree accurate in the short term.

3. The equation can be solved using a first-degree polynomial.

4. She is an only child, so she is related to all of her first-degree relatives by blood or marriage.

5. The suspect is charged with first-degree murder.

6. The patient"s airway was obstructed by a foreign object, causing first-degree obstruction of the airway.

英文小作文：

First Degree Relationships

First degree relationships are those closest to us in our family and social circles. These relationships are those who share our bloodline or have been closely connected to us through marriage or friendship. They are the ones we trust and rely on the most, and they are also the ones who will be there for us in times of need and trouble.

First degree relationships are essential to our wellbeing and happiness, as they provide us with love, support, and understanding. They also help us to understand ourselves better, as we learn from their experiences and viewpoints.

In conclusion, first degree relationships are an integral part of our lives, and we should cherish and nurture them as much as possible. They are the ones who make us feel safe and cared for, and they are the ones who will always be there for us when we need them the most.