每日钉一下（4个技巧，帮你从小白成为投资高手）

Group 1 - The core viewpoint emphasizes the importance of diversifying investments across various asset classes, including both RMB and foreign currency assets, as well as stocks and bonds [1] Group 2 - Dollar bonds are highlighted as a significant component of investment diversification, prompting the question of how to invest in dollar bond funds [2] - A free course is offered to systematically introduce the knowledge of investing in dollar bond funds, indicating a resource for investors seeking to enhance their understanding [2][3] - Additional materials such as course notes and mind maps are provided to facilitate efficient learning and comprehension of the course content [3]