The herculean task of eradicating AIDS has consumed efforts of a generation of human beings, and is yet to entail assiduous endeavors of the generations to come.

• 昨天是世界艾滋病日，早早地我就看到一队中大的学生绕着大学城内环跑步宣传，他们边跑边喊口号：预防艾滋病，你我同努力。