As with abstract classes, you can define any number of method signatures.

对于抽象类，可以定义任意数目的方法签名。

youdao

The marker's first number represents time in abstract units; the second optional number enclosed in parenthesis is the number of requests that terminate at this point.

标记的第一个数字表示以抽象单位计算的时间；第二个使用圆括号括起的可选数字表示在该点终止的请求数。

youdao

There are also some very amazing statues, many of which follow the theme of life in Egypt, especially in rural areas, but others vary, and include a number of abstract works.

博物馆中还展出着许多令人惊叹的雕塑，同样，很多仍是以埃及的生活为主题，特别是埃及乡村的生活，当然，也有其他多种多样的主题，包括一些抽象的作品。

youdao

So the number two, the numbers, three, whatever it is, whatever they are, are these Platonic abstract entities that don't exist in space and time.

因而,数字2,数字3,不管它们是什么,至少它们都是不存在于时空中的,柏拉图式的抽象实体

耶鲁公开课 - 死亡课程节选

To ascribe Asian success to some abstract number is to trivialize it.

NEWYORKER: None of the Above

People rely on their spatial knowledge to build many other more complex or abstract representations including time, number, musical pitch, kinship relations, morality and emotions.

WSJ: Does Language Influence Culture?

Success is no longer measured in terms of abstract metrics like site traffic or number of impressions.

FORBES: East Coast vs. West Coast: A False Distinction