the sound of后面应该怎么接弟弟打开电脑呢?
1.The sound of my younger brother turning on his computer(侧重声音是弟弟弄响出的).
2.The sound of the computer being powered up by my younger brother(侧重电脑开机发出声音).
3.The sound of the computer starting(不强调电脑由谁来开机).
-互相交流。