在for dinner, to dinner, with dinner等搭配中，dinner均为不可数名词，其前习惯上不用冠词。如：

We had pork chops for dinner last night. 昨天晚上我们吃猪排骨。

The family had roast leg of lamb for dinner. 全家人正餐吃的是烤羊腿。

She was offended that we didn’t accept her invitation to dinner. 我们没有接受她请我们吃晚饭的邀请，冒犯了她。

We’ve invited them to dinner, but we’ll have to put them off because the baby’s sick.  我们已经邀请他们来吃晚饭，但是因为孩子病了而只好改期。

We drink red wine with dinner every evening.  我们每天吃饭都喝红葡萄酒。

We always celebrate our wedding anniversary with dinner in an expensive restaurant.  我们总是去豪华饭店就餐来庆祝我们的结婚纪念日。