可怜的家伙那时并没有计算机上的“求助”键可使用。

The poor guy didn't have a "Help" key to push.

youdao

文件名的完成并不是一个新的概念；许多shell可提供基本的完成格式，例如Bash shell可使用tab键，如下例所示。

Filename completion is not a new concept; many shells provide basic forms of completion, such the Bash shell which USES the TAB key, as in the following example.

youdao

下表列出了录制期间可使用的预设快捷键，这些快捷键只有在你开始录制程序后才能使用。

The following table lists the default shortcut keys used during recording. These shortcuts should be used only after you start the recording process.

youdao