欢迎新人入群，是每个社交群体都面临的问题。为了让新人感受到温暖和归属感，我们可以用一些经典的语录和短句来欢迎他们。下面是一些常用的英文欢迎新人入群的经典语录和短句：

1. Welcome to the group! We're happy to have you here.

2. It's great to see a new face in the group. Welcome!

3. We're excited to have you join our community. Welcome aboard!

4. You're now part of an amazing group of people. Welcome!

5. Welcome to the family! We're glad you're here.

6. We're thrilled to have you join us. Welcome to the group!

7. A warm welcome to our newest member. We're so happy you're here.

8. We're looking forward to getting to know you. Welcome to the group!

9. We hope you'll feel right at home here. Welcome to our community!

10. Welcome to the group! We can't wait to see what you'll bring to the table.

这些经典语录和短句，不仅能够让新人感受到我们的热情和友好，还能够让他们快速融入我们的群体中。让我们用这些经典语录和短句，欢迎新人的加入吧！