然而，B细胞在变异和自我复制的过程中，多数变化会导致更弱或者非功能性抗体，使免疫系统开销增大，效率降低。

However, in the process of mutation and copy, most changes will make the new B-cells become more weak or produce non-functionality antibody, then the system will be huge spending and inefficient.

youdao

然而，B细胞在变异和自我复制的过程中，多数变化会导致更弱或者非功能性抗体，使免疫系统开销增大，效率降低。

However, in the process of mutation and copy, most changes will make the new B-cells become more weak or produce non-functionality antibody, then the system will be huge spending and inefficient.

youdao