有意思。 Carrot, celery and parsley are true biennials that are usually grown as annual crops for their edible roots, petioles and leaves, respectively. Tomato, sweet potato and bell pepper are tender perennials usually grown as annuals. 照上wiki说法,青椒西红柿是可以多年。胡萝卜,芹菜是两年生的。 怎么没听到德州同学说过呢?