Listen. As someone who's seen more than her fair share of bad beef, I'll tell you: that is not such a terrible thing.---《老友记》 第一季 第三集
不愉快的场面我见多了，告诉你，这并不是一件坏事。
(more than)your fair share of sth 是个固定用法。意思就是说：我吃的盐你比吃的菜还多，我玩过的女人比你见过的还多等等之类的意思
You'll have to do your fair share of the work.
你必须做你分内的工作。
例句：Lilly and Mike have done their fair share of the work, but George hasn't contributed anything. Lilly和Mike都完成了他们份内的工作，但George什么忙都没帮。
例句：If you want a share of the pay, you'll have to do your fair share of the work. 要是你想得到一份报酬，你就必须做好你该分担的那一份工作。