3. It should be a happy marriage.这会是一次愉快的联姻. 
marriage: combination. 
e.g. IT industry is the marriage of many other related industries. 
marry v. 结婚,嫁,娶 
e.g. John married Susan last year. 
John has married Susan for a year. (N) 
be married (with sb) for some time 
e.g. John has been married with Susan for a year. 
They have been married for 30 years. 
Have you married? (N) 
Are you married? - Not yet, I’m still single. 

4. as/so far as… concerned 就…而言 
e.g. As far as I’m concerned, I am for the propose. 就我自己而言,是支持这个建议的. 
As for as classical music is concerned, I have no interest in it. 
说到古典音乐,我一点也不感兴趣. 
So far as the management is concerned, you can appoint the manager. 
至于管理,你可以亲自指派经理人选.