来往于伦敦和这条线上其他城市间的旅程时间将会缩短；南北铁路线主线之一的线路运营能力不足问题也将避免。
Journey times between London and other cities will fall; a capacity shortfall on one of the main north-south rail routes will be avoided.
MacRuby 0.6发布之后，用户发现了一个问题，在运行某代码段的时候， 从后台线程切换到主线程会导致程序崩溃。
One issue that was found after the release of MacRuby 0.6 seems to cause problems with scheduling a block to run on the main thread from a background thread.
因此我们发现了在UI线程上运行pluglet并输出信息到控制台上的另一个问题：整个pluglet必须在主线程的任何一个输出被发送到控制台之前结束。
So we see another issue with running on the UI thread and outputting information to the console: the whole pluglet has to end before any output from the main thread is sent to the console.
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