1.share with sb sth or share sth with sb is fixed application.here the littli bit of knowledge of English is sth in the application.make it simpler,the little bit of English knowledge.here "little bit...here it uses would to express sb's emotions. it is following sb, here it is I.What emotion?表示人的情态，表示人的意愿Would you like analyze sentences ,it is my pleasure and good fortune to be able to contriube some thing to all this by sharingwith you the littli bit ofknowledge of English ,every component .I don't understand.Thank youvery much .中文意思就是：我很高兴，并且幸运（it is my pleasure and good fortune ），通过与你分享一点英语知识（by sharingwith you the littli bit ofknowledge of English），能为所有这些付出一些（ be able to contriube some thing to all this）。习惯用法包括：　it is one's pleasure to do sth高兴做某事contribute sth to sth为某事付出share with sb sth.与某人分享某事（物）