lettuce,cabbage是可数名词吗?求详解

作为植物的“卷心菜”，指“一棵洋白菜”“一棵卷心菜”，通常可数。如：
The cabbages germinated within a week. 白菜一星期内就发芽了。
He planted a row of cabbages. 他种植了一行洋白菜。
The cabbages were stored in the basement. 包心菜储藏在地下室里。
The leaves of a cabbage can be green, white or purple. 卷心菜的菜叶有绿色、白色或紫色的。
Two cabbages, three pounds of tomatoes and twelve oranges. 两棵白菜，3磅西红柿，12个桔子。
Given better attention, the cabbages could grow even faster. 白菜如照管得好会生长得更快。
作为疏菜吃的（尤指切碎的或煮熟的）“卷心菜”“卷心菜叶”，不可数。如：
Mother often makes dumpling filling with cabbage. 妈妈常用卷心菜做饺子馅。
Finely chop the cabbage and cook it in boiling salted water. 把卷心菜切碎，放进沸腾的盐水中煮。
Coleslaw is a kind of salad made of finely chopped cabbage and mayonnaise. 克思罗沙拉是用切碎的圆白菜和蛋黄酱做成的。
【谚语】Some persons like to eat radishes, others prefer cabbages. 萝卜白菜各有所爱。

看情况:
烧熟的菜: 不可数
从菜地刚采摘的,从菜场刚买回的: 可数

britishpretty 说：
看情况:
烧熟的菜:不可数
从菜地刚采摘的,从菜场刚买回的:可数
不仅正确,而且精辟!