Examples
shàng上hǎi海yǒu有shén me什么bù rú不如běi jīng北京de的fāng miàn方面ma吗？
上海有什么不如北京的方面吗？
Are there any aspects of Shanghai that are not as good as those of Beijing?
不如我们走着去书店吧？
Why don't we go to the bookstore on foot?
说的好不如做的好
It is better to do well than to say well.