1. You can opt in to our newsletter to receive regular updates.
你可以选择加入我们的新闻通讯以接收定期更新。
2. Users must explicitly opt in to share their personal data.
用户必须明确表示同意分享他们的个人数据。
3. Many members decided to opt in to the new volunteer program.
许多成员决定参加新的志愿者计划。

A: Would you like to opt in to our weekly newsletter?
A：您想加入我们的每周新闻通讯吗？

B: Yes, please. I don't want to miss any news.
B：是的，请。我不想错过任何新闻。

1) 主动加入某种计划或服务

2) 同意接收邮件或广告

3) 在法律或技术语境下表示许可或同意

1. 选择参加；同意加入

e.g.
Please opt in to receive more information.
请选择加入以接收更多信息。

phrasal verb

1. To choose to participate in something or to agree to receive something.

Synonym: join, enroll, sign up