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n (1)(植物的)根(part of a plant that is under the ground)[C，常pl]：Trees often have deep/long～s. 樹木常常有很深/長的根。Pull the grass up by the/its～s. 把那些草連根拔掉?！玽egetable/beer 根莖蔬菜/根汁汽水;〖同〗bottom;

(2)(身體器官的)根(部)(part of hair，tongue，tooth，etc that is buried in the flesh or attached to the rest of one's body)[C]：the～s of one's hairs/one's teeth/one's nails/one's tongue 頭發(fā)/牙/指甲/舌根;Pull the hair out by the～s. 連根拔掉頭發(fā)。〖同〗bottom;

(3)根，祖籍(relationships and feelings of loyalty that make one belong to a place，group，tradition，etc;family tie)[C，pl]：pull up one's/put down (new)～s 離開自己原定居的地方/(在新地方)扎根;search for one's～s 尋根(運動);His～s are/He has～s in China. 他的根在中國。He has no～s in Europe. 他的祖籍不在歐洲。We've lived here too short a time to have any～s. 我們在這兒住的時間太短了，沒有什么根基。

(4)根源(基，本)原因(base;origin;cause)[C，尤sing](fig)：the～of all evil 萬惡之源; the～of the question/the whole trouble/the unemployment problem/the tragedy 問題/整個煩惱/失業(yè)問題/悲劇的根源;We must get at/get to/strike at the～of the problem. 我們必須抓住/抓住/抓住這個問題的實質(zhì)。The～s of his neuroses go back to childhood. 他患神經(jīng)官能癥的病因要追朔到他的童年。the～cause of the trouble/poverty 煩惱/貧窮的根本原因;〖同〗origin，source;basic，fundamental;

(5)詞根(word or part of a word from which other words have been built up)[C](=base form)：“Love” is the～of “l(fā)ovely” and “l(fā)oveliness”. Love是lovely和loveliness的詞根。The word “cordial” comes from a Latin～. cordial一詞來自拉丁語的一個詞根。

(6)(數(shù)學(xué))根(數(shù))(quantity that，when multiplied by itself a certain number of times，gives another quantity)[C]：3 is a cube～of 27. 3是27的立方根。The square～of 9 is 3. 9的平方根是3。

root and branch 完全(地)，徹底(地)：These evil practices must be destroyed～and branch. 這些罪惡的行徑必須徹底鏟除。

take/strike root 扎(生)根： The transplanted apple trees have taken～. 移植的蘋果樹已經(jīng)生根了。The idea gradually began to take～in the minds of his followers. 這種想法逐漸開始在他的追隨者心中扎下了根。

→′rootless adj 無根的;′rootlessness n 無根;′root-crop n 塊根植物;

v (1)(使)生根;種植((cause to)grow roots;plant)[I，I+prep，T+n，T+n+prep]：These plants do not～very well. 這些植物不好生根。 The tree will not～in such arid soil. 在這樣貧瘠的土壤里這棵樹不會生根。The tree～ed itself very quickly. 這棵樹的根長得很快?！玹he bulbs/the roses in potting soil/compost 把這些球莖/玫瑰種在盆栽土/混合肥中;～the cuttings in pear 把剪枝嫁接在梨樹上;

(2)使(站著)不動(plant or fix in place by or as if by roots)[T+n+prep，尤pass]：be/stand～ed to the spot (the ground/the place) (with fear/by surprise/in astonishment)(害怕/吃驚/驚訝地)站在那兒一動不動;Terror～ed him to the spot. 他被嚇得一動也不動。He sat～ed in the seat. 他紋絲不動地坐在座位上。

(3)使扎根(cause to become established，deeply and firmly)[通常pass：T+n，T+n+prep]：have a～ed objection to that behaviour 對那種行為從骨子里反對;His affection for her is deeply～ed. 他對她的愛根深蒂固。customs～ed in tradition 傳統(tǒng)上固有的習(xí)俗;morality～ed in the hearts of people 扎根于人民心中的道德標準;These sentiments are～ed in the tradition of radicalism. (fig) 這種情緒源于激進主義的傳統(tǒng)。His difficulties are～ed in his lack of education.(fig) 他的困難源于受教育不多?！纪絝ix，establish，stick，fasten;

root out (v adv)清(鏟)除(vt)：We must～out crime/all the dead plants. 我們必須鏟除犯罪/把所有已死的植物清除掉。

root up (v adv)連根拔起(vt)：He～ed up all the trees on his farm. 他把他農(nóng)場里所有的樹都連根拔掉了。