单词fact-of-life
n.realitypracticalityfacttruthactuality
Darwin would later say that this work caused him to realize the struggle for limited resources was a fact of life.
达尔文后来说到，这部著作使他认识到，争夺有限的资源是无可争辩的事实。
Too often this joke has been used to express some dark fact of life with which those in the real world must contend.
这句话很经常用来表达那些真实世界中必须主张的事实。
To experience conflict is not to deal with an aberration, but a permanent fact of life we often do a good job of conveniently ignoring.
感受矛盾并不是为了对付某个反常现象，而是一个永恒的人生现实——我们往往为了省事而忽视这个现实。
It"s been a fact of life for African Americans since the beginning.
可对非洲裔美国人来说从一开始就是铁一般的事实。
Networks sometimes fail -- it"s just a fact of life that you, as a Web user, have come to live with.
网络有时候会出现故障，这是Web用户必须忍受的，无法更改的事实。
"We are bound into contracts and that"s just a fact of life, " he said.
他说“我们签订合约而且那是无法改变的事实”。
For some it"s temporary, perhaps triggered by particular events or transitions, while for others, it seems to be a permanent fact of life.
有时是暂时的，可能是由于某些特殊事情或突变而引起的；而对有些人来说，似乎很长时间都很孤独。
Well, it might not be a fact of life to us, but it is to her so give her a break.
这不可能发生在我们身上，但这是她们生活的一部分，所以给她点放松的时间吧。
Still, "It"s just a fact of life that we can only milk a cow for so long, " analyst David Cappuccio told a recent conference.
“事实上，我们已经使用XP很长的时间了，就像我们不能一辈子都给一头牛挤奶一样。”分析师DavidCappuccio在近期的一次会议上说道。
It"s a simple fact of life that you"ve got to take care of the low end of the market.
严酷的现实是我们必须照顾购买力较低的那部分市场。