I don't know how to get her to snap out of her depression. [=to stop being depressed]我不知如何才能使她摆脱抑郁。

The sound of a door slamming snapped me out of my daydream.砰地关门声把我从白日梦中惊醒。

Come on, snap out of it! You can't let your breakup get you so depressed.嗨，振作起来！别因为分手就这么沮丧。