⁃ Patients must meet all of the following inclusion criteria to be enrolled：

• Age range: 18 to 80 years old (inclusive), both male and female are acceptable；

• ECOG: 0-2；

• B-cell non-Hodgkin's lymphoma expressing CD20 antigen that has been pathologically diagnosed；

• At least one measurable lesion meeting the criteria specified in the Lugano 2014 response assessment； Acceptable organ function at screening；