Invite a friend to be with them.

邀请一个朋友和他们在一起。

youdao

Invite a friend to go.

邀请朋友一起去。

youdao

Invite a friend or family member to serve.

邀请一位朋友或家人来参与服务。

youdao

A woman might invite a group of women to a party called a baby shower for a friend who is about to give birth.

VOA: special.2009.09.11

Do you mind if I invite a friend?

你介意我邀请一个朋友吗？

Do you mind 实战 - SpeakingMax英语口语达人

And then there was the invite-a-friend weekend, which let players bring three friends to Tyria.

FORBES: 'Guild Wars 2' Sells 3 Million Copies, Tells Us Why 2013 Will Be Exciting

Her last tweet was an enthusiastic acceptance of a friend's invite to celebrate the day with chocolate cupcakes topped with red hearts.

NPR: Pistorius' Girlfriend Was A Model, Law Graduate

It's currently still in an invite-only stage, so you'll need a friend to help get you in -- or you can sign up for the waiting list, which usually takes just a few days.

CNN: 50 new tech tools you should know about