这种低噪声、无排放物的小玩艺儿早就在美国航空航天局的航天器上派上了用场。很多环保主义者对它寄予厚望，期待它能为首批大量生产的电动小轿车提供动力。

These silent, zero-emission gadgets have long been used in NASA spacecraft. They represent the great hope of many environmentalists to power the first mass-produced electric car.

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然而，转瞬之间，纳斯达克股市全线崩溃，众多被投资者寄予厚望的网络公司随之纷纷破产。

However, very soon, the entire collapse of the Nasdaq stock market, many investors have great expectations of being the network company then went bankrupt.

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作为典型社会团体的中国消费者协会，曾经被广大消费者寄予厚望。

As a typical social organization, consumers have set their hope on Chinese consumer Association deeply.

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