Indeed, method calls are usually fairly expensive operations.

确实，方法调用通常是比较昂贵的操作。

youdao

These are good libraries, but the commercial version is fairly expensive.

这些都是很好的库，但是商业版本相当昂贵。

youdao

Those projects still tend to be fairly expensive and difficult to pull off.

这样的项目依旧相当昂贵，并且很难成功。

youdao

Those projects still tend to be fairly expensive and difficult to pull off.

这样的项目依旧相当昂贵，并且很难成功。

youdao