Mix the rice wine vinegar and the water together in a small bowl and set aside.
Mix the soy sauce and sugar and stir until the sugar is dissolved. Set aside.
Heat a large nonstick skillet over medium-high heat and add the oils. Add the garlic and crushed red pepper flakes and and stir-fry until fragrant about 15 seconds.
Turn the heat to high and add the broccoli. Stir-fry. Add the rice wine vinegar and water mixture and combine. Cover and cook for about 2 minutes.
Add the soy sauce mixture and toss. Add the pine nuts and stir-fry for a few seconds to combine the ingredients.