film sound的用法和樣例：
例句
- The sound tracks of most films are made up of both synchronous sound and postsynchronous sound.
多數電影的聲帶上均有同期和后期錄制上去的聲音。 - One way to visualize the importance of detecting gravitational waves is to think of the universe as a movie and gravity waves as sound.
關(guān)于探測引力波的重要性，打個(gè)形象的比方，可將宇宙看作一部電影，而引力波是電影的聲音。
