n.
大白菜(也作celery cabbage)

napa \napa\ n.
A plant ({Brassica rapa} pekinensis) with an elongated
celerylike head of broadstalked leaves used as a vegetable in
east Asia; called also {Chinese cabbage}.

Syn: Chinese cabbage, celery cabbage, pe-tsai, {Brassica
rapa} pekinensis.
[WordNet 1.5]