Your question is too general. The trademark matter needs specific analysis. Some trademarks that weigh two words do not constitute approximation, while others will, both in Chinese and English. If the trademark you want to register has obviously different meanings from the one registered earlier, it's okay to add two words. If you can, you can add my trademark, Huludao Zhuowei, and I can help you analyze it in detail, and then you can go to an agent to help you handle it.