This is a brand new product; it proved to be a craze in the American market.
这是一个全新的产品,在美国市场掀起了一股热销潮。
We can't decide what to do.
我们不能决定怎么做。
would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.