keystone的复数形式怎么写？

n.重点，要旨，基本原理，拱心石...

Advancing suburban assurance is the difficulty and keystone of domestic insurance enterprise.发展农村保险是我国保险业发展的难点和重点.Quantitative measurements of one sort or another serve as the keystone of engineering practice.定量测定一种或多种成分...

Quantitative measurements of one sort or another serve as the keystone of engineering practice.定量测定一种或多种成分是环境工程中的重要项目.The keystone to any marriage is one word: " WE ".任何婚姻的基石只有两个字: “ 我们 ”.Advancing suburban assurance is ...

keystone的音标：keystone的英式发音音标为：['ki:stəʊn]keystone的美式发音音标为：['kistoʊn]...

adj.能避免的，可回避的，可作为无效的...

Of course, not all alcoholics and drug abusers produce deviant offspring.当然，并不是所有的酗酒者和吸毒者都会生育出不正常的后代。The study found that some alcoholics had clear personality traits showing up early in childhood.研究发现一些酗酒者在童年早期就显现出鲜明的人格...

n.大陆漂移...

它们吃昆虫和一些在墙上 爬行 的小蜥蜴等家庭主妇所痛恨的一切生物.It eats insects and some small lizards that crawl wails -- anything the homemaker hates....

内毛虫属...

军官们打算重新夺回该市的防御区。Officers were going to retake sectors of the city.这次入侵的隐秘和迅速令陆军军官们大为震惊。The secrecy and swiftness of the invasion shocked and amazed army officers.麦金农走下甲板，来到军官们的住处。Mckinnon went down from deck to the offic...

adj.治疗佝偻症的...

adj.有酸味的，敌对的，坏脾气的，别扭的vi.变酸，变馊，发酵，厌烦，败坏vt.变坏，恶化，使变酸，使失望，使不毛n.酸味，苦事...

They cut out sharps of the teeth and the nose.他们刻出牙齿.鼻子的形状.Sharps or flats next to individual notes only apply within the measure.高音或低音符号只能在相近的小节内使用.A difficult piano piece full of sharps and flats.有很多升半音、降半音难度很大的钢琴曲....

altoherbosa的音标：altoherbosa的英式发音音标为：['æltəʊhəbəʊzə]altoherbosa的美式发音音标为：['æltoʊhəboʊzə]...

apparatuses的音标：...

“小窗”的拼音为：xiǎo chuāng...

picture的近义词/同义词有：depict, describe, represent, portray, characterize, illustrate, countryside, portray, perspective, landscape, painting, characterize, prospect, envisage, represent, movie, conceive, design, copy, figure,...

Woodcock的音标：Woodcock的英式发音音标为：['wʊdkɒk]Woodcock的美式发音音标为：['wʊdkɑk]...

Her grandmother had the gift of making people happy.她奶奶有逗人开心的本事。They are naturally good salesmen with the gift of the gab.他们天生就是能说会道的推销能手。The surprise gift is a thankyou for our help.这份意外的礼物是为了感谢我们给予的帮助。...