Browsing Chinese (Hong Kong) translation

Translators: A live region is an area of a web page that is periodically
updated, e.g. stock ticker. http://www.w3.org/TR/wai-aria/terms#def_liveregion
The "politeness" level is an indication of when the user wishes to be notified
about a change to live region content. Examples include: never ("off"), when
idle ("polite"), and when there is a change ("assertive"). Orca has several
features to facilitate accessing live regions. This string refers to a command
to cycle through the different "politeness" levels.