页面seo公关有所为，有所不为。

Do's and Don 'ts of On-Page SEO for Public relations?

君子有所为，亦有所不为，不以善小而不为，不以恶小而为之！

Gentlemen have to be doing what we have, rather than not good for small, small and not evil it!

蔡元培一生辞职多次，其无所不容而又有所不为的“和而不同”思想性格，是促使他多次辞职的重要原因之一。

Cai Yuanpei s thought and character of "Jion in But Distinct" is one of the important reason causing his resign.

存续企业要发挥自己的优势，在经营中要有所为有所不为，使有限的资源产生最大的效益。

The non - listing parts should make use of their advantages and avoid the disadvantages in the business transactions to maximize the profits.