How do I learn to play bass and treble at the same time ?
我如何学习演奏的同时低音和高音?
Bass note , treble , stereo control , how low you go
低音音符,超高音,立体声控制,你能进多深?
Its sales in the latest quarter were almost double those of the previous year , and forecasts for 2013 revenues are nearly treble those recorded in 2010 .
其上个季度的销售额将近去年同期的两倍,而对2013年的营收预期更是达到了2010年的三倍。
One step would be to treble the imf 's resources , to $ 750 billion , so that it can give more help to emerging economies ( the vexed question of how to run the fund can wait ) .