Continuations can be expensive.

延续是昂贵的。

Simulate continuations.

模拟延续。

Writing a Continuations-based application.

编写基于Continuations的应用程序。

Perl 6 will support continuations natively.

Perl 6本身支持延续。

But the state machine is a nice approach to continuations.

但是，状态机(state machine)是不错的延续方式。