keystone怎么读,keystone的音标和真人发音
英音  ['ki:stəʊn]    
美音 [ˈkiˌston]    
音节划分:key-stone

keystone是什么意思,keystone的意思是

n.重点;要旨;基本原理;拱心石

keystone 变化形式

复数: keystones
易混淆的单词: Keystone
星级词汇:

keystone的词源和记忆技巧

keystone 拱顶石,主旨,要点
key,钥匙,关键,stone,石头。因拱顶石形如一把钥匙,同时也最为关键。引申词义主旨,要点。

keystone 的用法和双语例句“点击”或“选中”例句中的单词,就可以看到词义解释

Transcanada is the company constructing keystone .
横加公司是公司建设重点
They 're what ecologists call a " keystone " species , who control the abundance every other species , but require a habitat of sufficient size to support those other creatures .
它们是生态学家所谓的“重点”物种,控制着大量的其它物种,不过它们需要足够大的栖息地以供养其它那些生物。
However , these reserve requirements were abolished by margaret thatcher in 1980 as a keystone in her free market revolution , so that by the late 1980s every control and regulation on city lending had been scrapped .
然而,在1980年,作为撒切尔夫人自由市场改革的重点措施之一,这些存款准备金已经被废止,因此,到20世纪80年代末每一次城市的贷款的管制都被取消了。