该句使用介词短语结构说明原因背景，表达简洁明确。
Practical Experience
Due to my family's challenging financial situation, I have been engaging in part-time work both on and off campus during weekends and holidays since my enrollment. On campus, I have worked at the second cafeteria, assisting with serving meals and cleaning utensils. Off campus, I have gained experience through various roles such as flyer distribution, telemarketing, and sales promotion. Although some students may look down on such labor, I believe these experiences have not only alleviated my parents' financial burden but also taught me invaluable life lessons beyond the classroom, significantly enhancing my interpersonal and social skills.
实践情况
由于家庭经济条件较为困难，自入学以来，我一直利用周末及节假日时间在校内外从事勤工俭学活动。在校内，我曾在二食堂负责打饭、收拾餐具及洗餐具等工作；在校外，我也通过发放传单、担任话务员及促销员等方式积累社会经验。尽管部分同学可能对这类工作持有成见，但我认为这些实践不仅有效减轻了父母的经济压力，更让我学到了许多课堂之外的宝贵经验，显著提升了我的沟通能力与处世能力。