留学生线上发言开场白需要兼顾正式性与亲和力，以下是综合建议及示例：

一、正式场合开场白

学术讲座或典礼

- "Good [morning/afternoon/evening], esteemed faculty and fellow students. It's a pleasure to be here today and look forward to an engaging session."

- 示例：渤海大学国际交流学院院长任丽娟在开学典礼上开场："Good morning, everyone! I'm [Name], and I'm honored to welcome you to our international exchange program."

网络会议或研讨会

- "Hello and welcome to today's webinar. I'm [Name], and I'll be guiding us through [Topic]. Your participation is invaluable."

二、社交或新生见面会开场白

轻松破冰式

- "Hi everyone! I'm [Name], and I'm excited to join this community. Where are you from, and what brings you to [event]？"

- 示例：留学生新生见面会："Hi, I'm [Name]. I'm from [Country]. I chose this university because of its [Program/Location]. I'm a bit nervous but looking forward to making friends!"

兴趣引导式

- "Good [morning/afternoon]! I noticed we all have [common interest]. I'm [Name], and I share that interest. Let's start by sharing our experiences."

- 示例："Good morning! I noticed we all love [hiking]. I'm [Name], and I'm an avid hiker. How about you？"

三、注意事项

简洁明了：

线上发言时间有限，建议控制在2-3分钟内。开头直接说明身份和目的，避免冗长寒暄。

文化敏感：

注意使用中性语言，避免使用可能引起误解的俚语或文化梗。

互动设计：

可以通过提问或小调查增加参与感，例如："What's your biggest challenge so far？"

四、补充建议

视觉辅助：使用PPT或视频背景增加专业性，但避免过度依赖文字。

语言规范：若为非母语者，建议提前准备发言稿，并进行多次演练。

通过以上结构化开场，既能展现专业素养，又能有效拉近与听众的距离。根据具体场景选择合适风格，并保持自信表达即可。