"丰富多彩的示威和周末游行是重要的，但仅靠它们无法阻止战争。"

Simplified Meaning:

Holding vibrant protests and gatherings on weekends is important and can catch people's attention, but these actions by themselves can't end wars. Think about a school bully: if students only make signs and shout slogans during recess, it's a good start, but it won't stop the bullying. To really make a difference, the students need to talk to teachers, involve parents, and maybe even set up regular meetings to address the issue in-depth. In the same way, stopping a war requires more than just visible rallies – it needs continuous effort, discussions, and actions from many people, including leaders and decision-makers. People can write letters, join organizations that work for peace, and use their voices in their communities. Combining these sustained efforts with demonstrations can create a stronger push for change.