要使英语作文“变强壮了”，可以从以下几个方面进行改进：

结构清晰

引言：简要介绍强壮的重要性。

主体：详细阐述如何通过饮食、锻炼和心态等方面来增强体质。

结论：总结全文，强调健康生活方式的益处。

内容丰富

饮食：强调均衡饮食的重要性，多吃蔬菜和水果，避免高脂肪食物。

锻炼：建议定期进行有氧运动和力量训练，如跑步、打球等。

心态：保持积极乐观的心态，有助于身心健康。

语言简洁明了

使用简单易懂的词汇和句式，避免冗长和复杂的表达。

注意语法正确性，确保句子通顺。

举例具体

可以通过个人经历或具体例子来说明健康生活方式带来的好处。

How to Become Stronger

In today's fast-paced world, having a strong body is essential for both physical and mental well-being. To achieve this, we need to focus on three main areas: a balanced diet, regular exercise, and a positive attitude.

Firstly, a balanced diet is crucial. We should eat a variety of foods, including plenty of vegetables and fruits, which are rich in essential vitamins and minerals. Avoiding high-fat and processed foods helps maintain a healthy weight and supports overall health.

Secondly, regular exercise is vital. Engaging in physical activities such as running, swimming, and weightlifting not only strengthens our muscles and bones but also improves cardiovascular health and enhances flexibility. Even daily activities like walking can contribute to our fitness.

Lastly, a positive attitude towards life is important. Staying optimistic and managing stress effectively can improve our mental health and overall well-being.

In conclusion, by following these guidelines, we can become stronger and healthier. Remember, a healthy diet, regular exercise, and a positive mindset are the keys to achieving and maintaining physical fitness.

希望这些建议能帮助你写出一篇更强壮的英语作文!