1. Policy environment: Biden's policy towards international students is relatively friendly. Biden's administration has resumed the visa policy for studying abroad that was abolished during Trump's administration, and relaxed the restrictions on certain types of visas for studying abroad, which has enabled more China students to study in the United States. However, during Trump's administration, many China students could not study in the United States because of the unfriendly policy towards international students.

2. Academic cooperation: During Biden's administration, the cooperation between China and the United States in the academic field gradually recovered, and the cooperation projects between researchers of the two countries in the fields of science and technology, environmental protection and public health gradually increased, which helped to promote the scientific and technological development and innovation of the two countries, while during Trump's administration, the cooperation between China and the United States in the academic field was vacant.