friendly比较级有2种形式。friendlier, more friendly

第1种为friendlier 

Autumn is a friendlier time.  

秋天比较友好.

Generally speaking, Americans friendlier and more outgoing than the English people.  

一般来说, 美国人比英国人更友好,更容易相处.

Rejigging the map of Europe would make life more logical and friendlier.  

欧洲版图的重划能够使生活变得更加井然有序,友好和谐.

The air fresher and the people are nicer and friendlier.  

空气较新鲜,人也比较好,比较友善.

We even tried to promote Mandarin to make the city seem friendlier.  

为了让城市显得更友好,我们甚至已努力推广普通话.

第2种为more friendly

Though the talks had been hard going at the start, they had become more friendly. 

虽然会谈在初期进行得很艰难，但是后来气氛变得友好些了。

Companies are looking to make technology in the home more friendly.  

科技公司正打算将家庭中的科技产品变得更为友好.

Can you imagine them becoming more friendly with each other?  

你能想像他们会变得彼此更友好 吗 ?

Just call me David. name is more friendly than name.  

就叫我大卫吧,称呼名字比称呼姓要更亲切一些.