special circumstances

基本解释

Still other signals are transmitted from the operating system to processes in special circumstances.
在特殊情況下，操作系統還可以將一些其他信號傳送給進程。
Asked whether electric shock therapy would be used, the employee said it should be called "pulse therapy" and was only used in special circumstances.
儅被問到是否使用電擊療法時，員工說正確名稱是“脈沖療法”，衹在特殊情況下才會使用。
In fact, it is seen only under special circumstances such as using a special naming convention to mark methods for internal consumption.
事實上，衹有在特殊環境中才會看到這種名字，比如使用特殊的命名約定將方法標識爲內部消費。

Unless there are special circumstances, I always try to come at least ten minutes early, and I am willing to stay late to talk to people.
如果沒有什麽特殊情況,我一般都會至少提前十分鍾到教室,我也願意在課後和大家一起討論問題
耶魯公開課 - 心理學導論課程節選

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But the special circumstances of the Provenge case make this decision difficult to predict.
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