gatecrash

verb

1. 未获邀请而参加（或出席）；做（聚会等的）不速之客
   to go to a party or social event without being invited

1. VERB （未经邀请）擅自参加（或出席）
   If someone gatecrashes a party or other social event, they go to it, even though they have not been invited.
   1. Scores of people tried desperately to gatecrash the party...
      很多不速之客拼命想要挤进这个聚会。
   2. He had gatecrashed but he was with other people we knew and there was no problem.
      他不请自来，但他是跟我们认识的人同行，因此也没有什么关系。

1. Scores of people tried desperately to gatecrash the party
   很多不速之客拼命想要挤进这个聚会。
2. He had gatecrashed but he was with other people we knew and there was no problem.
   他不请自来，但他是跟我们认识的人同行，因此也没有什么关系。
3. He was so cross about not being invited to the wedding that he decided to gatecrash.
   他因自己没有被邀请出席婚礼而气坏了，于是决定自行闯入。