jicama       
noun [ U ] /ˈhɪk.ə.mə/ /ˈhɪk.ə.mə/
 豆薯;凉薯
a rounded, light brown root with white flesh that is eaten uncooked or cooked as a vegetable, or the plant that produces it, originally from Mexico
  He made a jicama and orange salad to accompany the meal. 他做了一份豆薯和橙子沙拉来配这顿饭。 
 Try using sticks of jicama instead of carrot or celery with the guacamole. 试着用豆薯条代替胡萝卜或西芹菜来配墨西哥鳄梨酱。 
 - More examples
 - Although usually eaten raw, jicama also works really well in soups and stews.
 - Jicama is sometimes known as the Mexican turnip or Mexican potato.
 - Toss the other vegetables with the shredded jicama, and season with mirin, soy sauce, and coriander.