1 an action that causes or encourages something to happen -- 引起，招致
2 an occasion when someone is formally asked to do something -- （尤指正式地）征求，请求
3 a piece of paper or card that invites someone to an event -- 邀请函；请柬
They had to refuse the dinner invitation because of a prior engagement .
Favors such as gifts, meals, and invitations obligate us to a future repayment of some kind.
The walk continued with invitations to make their way to a destination or to undertake a specific task.
He occasionally took them some of his speciality home-baked bread pudding, and politely accepted their periodic invitations to share a meal.
