例句 /

AIDS is a disease that breaks down the body's immune system and leaves a person defenceless against infections and illnesses.

AIDS is a disease that breaks down the body's immune system and leaves a person defenceless against infections and illnesses.

人们怎麽都不会想到,她是世界上数百万患有艾滋病并随时会丧命的孩子中的一个。