vicious

Sarah can be quite vicious at times..萨拉有时相当狠毒。

a vicious personal attack on the Duchess.对公爵夫人恶毒的人身攻击

She was shocked by the vicious tone in his voice..她对他恶毒的语气感到震惊。

vicious circle,恶性循环；循环论证法

vicious cycle,恶性循环

vicious spiral,n. 恶性螺旋形上升；[经]恶性通货膨胀螺旋

真题例句...Perlow calls this vicious cycle the "cycle of responsiveness" : Once bosses and colleagues experience an employee's increased responsiveness...第三套CET62016.12阅读理解

真题例句...starting the whole vicious cycle all over again...第二套CET62013.6阅读理解

真题例句...Quotas will break this vicious cycle by putting lots of women at the top...第三套CET62012.12阅读理解