free-fall

The value of the euro against the dollar went into free fall as soon as the news was announced.

消息一宣布， 欧元对美元比值就开始暴跌。

As the cost of computers and communications continues to free fall and as the more potential customers there are in the country, it is of great benefit for business to universalize access.

于计算机价格和通讯费用持续降，并且中国潜在消费者越来越多，因此普及网络使用，会给商家带来利润。