be trapped in

基本解釋

Nine other people were believed to be trapped in the rubble.
可能還有九名其他人被困在瓦礫下。
They say that if the captives aren't already dead, they might be trapped in hidden underground bunkers.
他們稱，如果俘虜還活著，他們可能被困在地下的掩體中。
You’ll be trapped in the ego’s rat race forever, and no matter what you do, you’ll never find the Holy Grail that you’re seeking.
你將會陷入自我的無意義追逐中，并且不管你做什么，你也永遠找不到你所追求的圣杯。

That goes back to that idea of sort of discipline coding. It's easy to have assumptions about what you think are going to come into the program when you writ it. If you really know what they are use them as search, but if you think there's going to be some flexibility, you want to prevent the user getting trapped in a bad spot, and exceptions as a consequence are a good thing to use.
這又回到了規(guī)范編碼的想法上來了,在你寫代碼的時候考慮,什么會進入你的代碼的思考是簡單的,如果你真的知道,他們是用他們來做搜索的,而你希望有一定的靈活性，你想要阻止用戶,陷入一個艱難的境地,那么異常是非常實用的。
麻省理工公開課 - 計算機科學及編程導論課程節(jié)選

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