1. Plan and execute user growth strategies for the North American market, utilizing multi-channel marketing to enhance brand awareness and market share. 2. Manage and optimize existing online promotion channels, continuously explore and develop new market channels to achieve user growth goals. 3. Conduct regular market and user data analysis to provide valuable market insights and support data-driven decision-making. 4. Collaborate with departments such as production research and design to ensure that market strategies are aligned with the overall company strategy. 5. Manage market budgets to ensure maximum cost-effectiveness of marketing activities. 6. Track the latest market trends and digital marketing tools, constantly innovate and optimize market strategies.