An open class isn't limited to the set of methods that were implemented when it was defined.

在定义时，开放式类并不只限于一组被实现的方法。

youdao

Please describe an example of an "open class".

请描述一次公开课的例子。

youdao

It's an open question whether you'll believe it when this class comes to an end, but I'd be surprised if many of you believe it now.

即使到课程结束时,能否接受这个观点,依然是你们的自由,相反,你们要现在就能接受,倒是会让我感到很奇怪

耶鲁公开课 - 心理学导论课程节选

Too much alcohol also irritates your gastrointestinal tract. (Imagine pouring a class of Absolut on an open wound.) Eating just about anything while you drink eases the pain because the food coats the lining of your intestines.

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Macrocyclic drugs are an emerging class of therapeutics that promise to open up drug target spaces which are poorly addressed by small chemical entities and larger biologics.

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Anyone with his eyes open will see that Rockwell was an illustrator in a class of his own.

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