keystone的复数形式怎么写？

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 ...

n.重点，要旨，基本原理，拱心石...

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]...

n.内浪花虫...

A series of movies will be shown to commemorate the 30th anniversary of his death.为纪念他逝世30周年，有一系列的电影要上映。This building was built to commemorate the Fire of London.这栋大楼是为纪念“伦敦大火”而兴建的.A special version of "Casablanca" is be...

n.宇宙志，宇宙（结构）学...

交手...

vt.写（文章，信等）创作，赋诗，创作（indite的第三人称单数形式）...

“止汗药”的拼音为：zhǐ hàn yào...

“征用”的英语可以翻译为：take over for use，commandeer，expropriation，requisition，confiscate ...

Everywhere was tumult, exultation , deafening and maniacal bewilderment , astounding noise , yet furious dumb - show.到处是骚动 、 兴奋 、 令人耳聋的疯狂的混乱,令人震惊的呼喊, 却也有激怒的哑剧场面.in a maniacal manner以发狂的方式None of this excuses his egregiou...

The kiddy plate here looks wonderful. I wouldn't mind having that myself.这儿的儿童餐看起来很棒, 我自己也想吃....

异呋喃并香豆素...

cowslip的音标：cowslip的英式发音音标为：['kaʊslɪp]cowslip的美式发音音标为：['kaʊˌslɪp]...

metampicillin的音标：metampicillin的英式发音音标为：[metæm'paɪsɪlɪn]metampicillin的美式发音音标为：[metæm'paɪsɪlɪn]...

脑病眼底检查...

v.注定( doom的第三人称单数 )，判定，使…的失败（或灭亡、毁灭、坏结局）成为必然，宣判...

He looked vaguely around the room as he spoke, his mind elsewhere.他边说话边茫然地打量着房间，心不在焉的样子。"I'm not sure," Liz said vaguely.“我不确定，”利兹含糊其词地说。Arnold felt vaguely embarrassed.阿诺德感到有点儿尴尬。...