But many major language features end up needing additional features to make them work well, or to work around interactions with existing features.
但许多主要的语言功能最终都要用到另外的一些的功能来让它们顺利运作，或是让他们能够与现有功能进行交互。
The initctl utility offers functionality similar to telinit but with some additional features specific to upstart.
initctl工具提供了类似于telinit的功能，不过增加了一些特定于upstart的特性。
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