a hard/tough nut to crack
1. 棘手的事; 难对付的人
It was then a hard nut to crack.
在那时是一桩很棘手的事。
习惯用语a hard [tough] nut to crack1.棘手之事; 难对付的人a tough nut1.[俚]果断顽强的人; 难对付的人, 无赖汉deaf nut1.没有仁的坚果2.注定失败的计划; 毫无所得的投机do one's nut(s)1.[俚]象疯子一样地行动; 发疯; 大发雷霆, 勃然大怒(can't do sth.) for nuts1.[俚][和否定语连用]一点[怎么]也(不会做某事)He who would eat the nut must first crack the shell.1.不打碎果壳, 就吃不到果仁; 不劳则无获。not care a (rotten) nut1.毫不在乎off one's nut1.疯狂的, 发疯的, 失去理智的2.混乱的; 不合道理的3.错误的on the nut1.[美]分文没有的nuts and bolts1.基本组成部分(如机器的工作部件, 运转部件等); 简单的事实, 基本功; 起码的职责(nuts and bolts language 浅显易懂的话)特殊用法acorn nut1.盖帽式螺帽adjust nut1.调整螺母adjusting lock nut1.调节锁紧螺母adjusting screw nut1.调节螺母anchor pin lock nut1.锁销防松螺母arresting nut1.止动螺母atomizing nut1.雾化喷嘴套管(喷嘴上的螺母)ball nut1.球状螺母barcelona nut1.(西班牙)巴塞罗那榛子bearing lock nut1.轴承锁紧螺母beech nut [mast]1.山毛榉坚果betel nut[ˈbi:t(ə)l]1.槟榔binding nut1.夹[扣]紧螺帽blocking nut1.防松[锁紧]螺母bright nut1.精制螺母butter nut1.灰胡桃butterfly nut1.蝶形螺母cage nut1.锁紧螺帽carozo nut1.大象牙椰子cashew nut1.谷(坚)果castle nut1.槽形[槽顶, 蝶形]螺母cedar nut1.雪松果, 松子check nut1.防松[保险]螺帽Chinese gall nut1.(中国)子; 五倍子cocoa nut1.椰子(果)2.[俚]脑袋Cola nut1.(苏丹)可乐果cold-pressed nut1.冷压螺母compression nut1.压紧螺母connecting nut1.连接螺母counter nut1.埋头螺母coupling nut1.联结螺母cream [Brazil]nut1.巴西果crosshead wrist pin nut1.十字头圆销螺母crown nut1.槽顶螺母differential nut1.差动螺母disc nut1.阀填料压盖double nut1.双螺帽eared nut1.翼螺母, 元宝螺母elastic nut1.弹性螺母English gall nut1.英国子eye nut1.有眼[吊环]螺母feed screw nut1.丝杆螺母finished nut1.精制螺母fish bolt nut1.鱼尾(板)螺母flange nut1.凸缘螺母flush nut1.平螺母full nut1.全高螺母(直径等于高度)ginger nut1.姜汁饼干, 姜味小酥饼gland nut1.压紧螺母grooved hexagonal nut1.带槽六角螺母hickory nut1.山核桃属high top knurled nut1.高顶滚花螺母Illinois nut1.薄壳山核桃(伊利诺斯坚果)inserted nut1.嵌入螺母ivory nut1.象牙果knurled nut1.滚花螺母kola nut1.可乐果属latch [jam] nut1.锁紧螺母left-hand nut1.左旋纹螺母locked nut1.夹紧螺母lotus nut1.莲心, 湘莲milled nut1.滚花螺母monkey nut (=peanut)1.落花生oil nut1.油用坚果pauco nuts1.五壳豆果pea nut1.(落)花生physic nut1.麻风树pinch nut1.锁紧[防松]螺母pine nut1.松球, 松果(子)pinnacle nut1.六角槽顶螺母pistachio nuts1.阿月浑子的果实poison nut1.番木鳖regulating nut1.调节螺母retainer nut1.防松[止动]螺母retaining nut1.锁紧[固定]螺母right-handed nut1.右旋螺母safety nut1.锁紧[安全, 保险]螺母sassafras nuts1.黄樟果sealing nut1.密封螺母self-locking nut1.自锁螺母serrated nut1.细牙螺母sleeve nut1.套筒螺母spigot nut1.导向螺母spurious nut1.假坚果stamped nut1.模压螺母stop nut1.防松螺母stuffing box nut1.填料函螺母thrust nut1.推力螺母thumb nut1.蝶形[翼形]螺母tightening nut1.拉紧螺母tung nut1.油桐果wing nut1.闹钟上发条螺母; 元宝螺母wood nut1.大栗