guideline的复数形式怎么拼写？

A written IQ test is merely a guideline.书面智商测试仅供参考。This is probably the most important interaction design guideline.这基本上是最重要的交互设计指导准则.Our guideline would be the prevailing world market prices.我们要以当时的国际市场的价格为准绳....

guideline的音标：guideline的英式发音音标为：['gaɪdlaɪn]guideline的美式发音音标为：['ɡaɪdˌlaɪn]...

n.指导方针，指导原则...