音画同步有助于增强电影的真实性，也有助于营造一个特定的气氛。
Synchronous sounds contribute to the realism of film and also help to create a particular atmosphere.
音画不同步。
音画不同步：当男女主角站在瀑布顶上时，欧文在克莱尔身后跟她说话，不过他的嘴巴并没有动。
Audio problem: When they are standing at the top of the waterfall Owen talks to Clare from behind and his mouth isn't moving.
音画不同步：当男女主角站在瀑布顶上时，欧文在克莱尔身后跟她说话，不过他的嘴巴并没有动。
Audio problem: When they are standing at the top of the waterfall Owen talks to Clare from behind and his mouth isn't moving.
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