1. Yet, because of its sudden start and rapid spread, AIDS could soon wipe out this progress.
    然而，由于艾滋病的突然降临和迅速蔓延，有可能使得这一进步化为乌有。

2. She stood up to wipe the sweat off her face.
    她站起来擦擦脸上的汗珠.

3. Like no other plague before, the AIDS epidemic threatens to wipe out an entire generation and leave another without parents.
    和以前其他瘟疫不同，艾滋病这一流行性疾病有可能夺去一代人的生命，从而使另一代人失去双亲。

4. I pick him up and wipe the dirt from his face. He looks like he is going to cry but laughs instead.
    我把他抱起来，擦去他脸上的尘土，他看上去就要哭了，但转而却笑了。