如果使用第三方程序库，事情会变得更为复杂，因为您永远不知道哪部分程序库是可重入的，哪部分是不可重入的。

Things become even more complicated when you're using a third-party library, because you never know which parts of the library are reentrant and which are not.

youdao

设置程序库路径可以为两个应用程序需要同一程序库的不兼容版本的这种罕见情况提供一个迂回解决方案。

Setting the library path can provide a workaround in the rare case where two applications require incompatible versions of a library.

youdao

对重新使用的最广泛的理解形式是与实现元素相关的，比如单个组件，和组件库(或者类库，或者程序库)。

The most widely understood form of reuse is with respect to implementation elements, such as individual components, and component libraries (or class libraries, or procedure libraries).

youdao

Always provides you with access to the math library because that's useful, too, so you don't always have to remember that.

总是能够让你能够使用数学程序库,那也是有用的，所以你不一定要把它记住。

哈佛公开课 - 计算机科学课程节选

Same way that I have multiplication or division as a primitive, functions are going to give me, or somebody else who wrote them for me as part of a library, a new primitive that I'm going to be able to use.

我在用乘法或者除法当做原语,这些函数,或者别人写程序库中的函数,将会给我返回一个,我能使用的新原语。

麻省理工公开课 - 计算机科学及编程导论课程节选

> That lets the compiler know that you want to use some actual compiled code from that library.

>，那是告诉编译器我们想要在程序库中,使用一些当前的编译后的代码。

哈佛公开课 - 计算机科学课程节选