例句 /

Feline AIDS is a highly contagious, incurable disease for which there is no vaccine. It can only be prevented by keeping cats indoors.

Feline AIDS is a highly contagious, incurable disease for which there is no vaccine. It can only be prevented by keeping cats indoors.

因为没有相应的疫苗,猫爱滋病是一种高传染性,无法医治的疾病。它只能通过把猫咪留在室内的方法来预防。