搬不走的那件事
這一族保留畫面的原樣：某件事就長在生活裡，改不了，只能接受。
noun · B2
Something that is true about a situation and cannot be changed, so people simply have to live with it — usually something hard or unwelcome.
改不了的事實
核心畫面
One way to hold this phrase: picture something planted in the middle of your daily life, too heavy to move. You can walk around it, you can complain about it, but at the end of the day it is still standing there — the long queue, the rent, the weather your work depends on. That is a fact of life. The same phrase also gets used, in the plural and with the, for a subject adults find awkward to name out loud: sex and where babies come from. Those are facts of life too, and the wide, gentle wording is exactly what makes them easier to say.
可以想成一個畫面：生活正中央長了一樣東西，重到搬不動。你可以繞過它、抱怨它，但一天結束時它還立在那裡——排不完的隊、…更多收起
可以想成一個畫面：生活正中央長了一樣東西，重到搬不動。你可以繞過它、抱怨它，但一天結束時它還立在那裡——排不完的隊、漲上去的房租、你吃飯要靠的那個天氣。這就是 a fact of life。同樣這幾個字，換成複數再加上 the，還會被拿來指一個大人不太好意思直說的題目：性，還有小孩是怎麼來的。那些也是生活本身的事實，而這個又大又溫和的說法，正好讓話比較好開口。Two branches
不好直說時的那個大說法
這是概念上的延伸，不是另一個來源：同樣是「生活本身的事實」，只是被拿來當一個含蓄的說法用。形式上有清楚的界線——一定是 the，而且一定是複數 facts。
noun · B2
The basic information about sex and about how babies are made and born, especially when an adult explains it to a younger person.
性與生育的常識