英语的比较句型 和A不同，B……

意思都含“不同的”。
different 系普通用语, 指“事物间的区别或本质上的不同”, 侧重“相异的”, 如:
The two boys are different in their tastes.
这两个男孩的兴趣是相异的。
diverse指“性质、种类十分不同的”, 如:
The word is now used in a sense diverse from the original meaning.
在某种意义上说, 此词现在的含义与最初的含义完全不同。
divergent指“分歧的”、“差异的”, 强调“不相容的”, 如:
divergent schools of thought
不同的思想流派。
distinct指“两个或更多个东西各自有其特点, 不容混淆”, 含有“明显”和“性质上不同”的意思, 如:
things similar in form but distinct in nature
形式相似, 实质不同的东西。
various 强调“种类或性质的不同与多样”, 而不强调“其本质的差别”, 如:
representatives from various parts of the country
全国各地的代表
2.There are some differences between
Different from ordinary mobile phones, 3G mobile phones can play video telephony.
Different from an ordinary career, doctors and teachers need to be worthy of their own conscience career.
这词典用得上http://www.iciba.com/可以翻译句子，留着以后用

unlike the common mobile ,the 3G mobile can ....

unlike "a","b"is......
the differences between a and b......

答案太长,懒得打出来

unlike the common mobile ,the 3G mobile can .... ..