而大声疾呼”, 如：As no one raised his voice against the plan, it was agreed on. (因为没有人发表反对意见, 该计划就一致通过了。) voice 的常用习语有：the public voice (舆论) , under one’s voice (小声地) , with one voice (异口同声地,一致地) ,lose one’s voice (嗓子哑了, 说不出话来) , have no voice with (对某事无发言权)。题目4：With the popularity of the Internet, both commercial computers and personal ones are more ____ to the computer viruses than ever before.