gain weight的音標是[?ɡe?n we?t]，基本翻譯是“增加體重”。速記技巧可以考慮將“gain”的字母重新排列組成單詞“nice”，意為“好的”，與增加體重相反，可以聯想到減肥，從而幫助記憶。

Gain weight的英文詞源是拉丁語的“adere”和“pesus”，意思是增加重量。這個詞后來被借用到英語中，用來描述體重增加的情況。

變化形式：

1. Gain weight - 名詞形式，表示體重增加的數量。

2. Gain flesh - 動詞形式，表示增加體重。

相關單詞：

1. Obesity - 肥胖癥，源自拉丁語的“obesitas”，意為過重或肥胖。

2. Overweight - 超重，源自拉丁語的“superpesus”，意為超重過多。

3. Fat - 脂肪，源自拉丁語的“fatsus”，意為脂肪狀或肥肉狀。

4. Mass - 質量，重量，源自拉丁語的“massa”，意為物質或重量。

5. Pounds - 英鎊，重量單位，源自拉丁語的“pundum”，意為重量。

6. Weightlifting - 舉重運動，源自拉丁語的“pesus levans”，意為舉起重量。

7. Bodybuilding - 健美運動，源自拉丁語的“corpus”，意為身體或身體部位。

8. Portly - 肥胖的，源自拉丁語的“portus”，意為港口或船只，引申為肥胖的身體。

9. Chubby - 豐滿的，圓潤的，源自古英語中的“chub”一詞，意為嬰兒肥或圓潤的肉體。

10. Fatigued - 疲勞的，源自拉丁語的“fatigare”，意為使疲勞或耗盡體力。這個詞后來被借用到英語中，用來描述因體重增加而導致的疲勞感。

常用短語：

1. gain weight quickly 迅速增重

2. put on weight 增加體重

3. gain some weight 長胖一點

4. gain weight steadily 穩步增重

5. gain weight easily 容易長胖

6. gain weight uncontrollably 無法控制地增重

7. gain weight due to illness 因疾病而增重

例句：

1. After a long period of hard work, he finally gained weight and felt more energetic.

2. She struggled with her weight for years, but finally gained some weight and felt more confident.

3. Losing weight is easy, but gaining weight is a challenge for him.

4. After a few days of rest, he gained weight steadily and felt much better.

5. It"s easy to gain weight when you"re not exercising regularly.

6. She gained weight easily when she was feeling down and out.

7. He gained weight due to illness and couldn"t help but feel helpless.

英文小作文：

I"ve always struggled with my weight, but recently I"ve been trying to gain some weight. I"ve been feeling weak and tired lately, and I think gaining some weight would help me feel better. I"ve been trying to eat healthier foods and exercise regularly, but it hasn"t been easy. However, I"m starting to see some progress and I"m feeling more confident about my body. I hope to eventually reach my goal of a healthy and strong body that I can be proud of.