two-track recording

例句：

1. 1. This two-track recording is a great way to learn a new language.
   这个双轨录音是学习一门新语言的好方法。
2. 2. The engineer used a two-track recording to record the sound of the waterfall.
   工程师用双轨录音记录了瀑布的声音。
3. 3. The two-track recording was so clear that it could be heard from a mile away.
   这个双轨录音非常清晰，可以传得很远。