The USP has a memorandum of understanding with the ChPC. Some general chapters (e.g., "Residual Solvents," "Elemental Impurities") are harmonized. You may find free comparison guides online.
Assuming you legally acquire the official English PDF, here is how to use it efficiently.
Chinese Pharmacopoeia (ChP) 2020 English Edition is the official 11th edition of China's pharmaceutical standards, effective as of December 30, 2020