法律真的開的那個窗口
這一家就是窗口本身，而且是真的寫在法規裡的。
noun · B2
The part of the year when the law allows people to hunt or fish for a particular animal, bird or fish. Outside those dates it is not allowed.
（獵捕的）開放期
核心畫面
Picture a calendar with a window cut into it. Inside the window a rule is lifted and something normally held back is allowed; outside it, the rule is back in place. Open here is not a door swinging — it is open the way a shop is open: permitted, for now. Everything this phrase does comes from that window: something is loose for a while, and everyone knows it.
可以想成一本月曆，上面被剪開一個窗口。窗口裡面，某條規定暫時放開，平常被擋住的事現在被准許了。窗口外面，規定又回去了…更多收起
可以想成一本月曆，上面被剪開一個窗口。窗口裡面，某條規定暫時放開，平常被擋住的事現在被准許了。窗口外面，規定又回去了。這裡的 open 不是門被推開的那個開。比較像 the shop is open 的那個開：目前是准的。這個詞的三個意思都可以看成從這個窗口長出來——有一段時間，某件事鬆開了，而且大家都知道。Two branches
窗口被搬到別的東西上
窗口還在，但被放開的不再是法律，而是大家心裡那條「不好意思做」的線。
noun · C1
If it is open season on someone, a lot of people are attacking them at the same time with words — criticising, blaming or making fun of them — as if nothing were stopping anyone from joining in.
群起圍剿的時候；人人都能開罵