OG10-104 The diet of the ordinary Greek in classical times was largely vegetarian—vegetables, fresh cheese, oatmeal, and meal cakes, with meat as a rarity.
OG解释：The best answer here must qualify the statement made in the main clause. The diet... was largely vegetarian: it cannot be treated as part of the list of vegetarian foods. In other words, the best answer must logically and grammatically attach to the main clause when the list is omitted.
个人认为这里的with meat as a rarity解释了The diet of the ordinary Greek的，它是大量的蔬菜加上少量的肉类。
with放句尾修饰了句子中心词的情况比较倾向于在系表结构的句子里，表语是主语的补足语，with在系表结构的句子后面又进一步的补充解释了句子主词。
再一个例子是：
OG12 V-Q14 The themes that Rita Dove explores in her poetry are universal, encompassing much of the human condition while occasionally dealing with racial issues.
Encompassing进一步补充说明了themes的内容。作者: anna-yu 时间: 2010-5-24 22:44
