/ru:t ||; rut/noun1 [C] the part of a plant that grows under the ground and takes in water and food from the soil （植物的）根: The deep roots of these trees can cause damage to buildings. 这些树的根很深，有可能对建筑物造成损害。 root vegetablessuch as carrots and parsnips 胡萝卜及欧洲防风根等根菜类 ☞pictures at flower and on page C2 见flower及C2页插图
2 [C] the part of a hair or tooth that is under the skin and that holds it in place on the body 发根；齿根
3 roots [pl] the feelings or connections that you have with a place because you have lived there or your family came from there 原籍；根；老家: She's proud of her Italian roots. 她为自己原籍意大利而自豪。
4 [C] the basic cause or origin of sth 根由；根源；源头: Let's try and get to the root of the problem. 我们好好找出问题的根源吧。 ☞Look at square root. 参看square root。