1. Lymphokines are important in regulating immune responses.
淋巴因子在调节免疫反应中起着重要作用。
2. Interleukin-2 is a well-known lymphokine that stimulates the growth and activation of immune cells.
白细胞介素-2是一种有名的淋巴因子，可以促进免疫细胞的生长和激活。