invitation
/ˌɪnvɪˈteɪʃən/noun
1- a written or verbal request inviting someone to go somewhere or to do something口头邀请; 请帖, 请柬：
a wedding invitation.
婚礼请柬。
1.1
- mass noun the action of inviting someone to go somewhere or to do something邀请：
a club with membership by invitation only
受邀才能成为会员的俱乐部
a herb garden where guests can only go at the invitation of the chef.
须经主厨邀请方可进入的香料种植园。
1.2
- in sing. a situation or action that tempts someone to do something or makes a particular outcome likely吸引; 引诱, 挑逗; 招致, 要求, 号召：
tactics like those of the colonel would have been an invitation to disaster.
上校的那些策略只会招致灾难。
词源
late Middle English: from French， or from Latin invitatio（n-）， from invitare （see INVITE）.