Now it's like a lip synch battle.

现在这就像一场假唱大战。

In Hollywood, the technology is being used to make actors look younger or to fix lip synch problems when a movie is dubbed into a different language.

在好莱坞，这项技术被用来让演员看起来更年轻，或者解决用不同语言配音的电影的对口型问题。