短语讲解：

1. Ten teams are taking part in the competition.

take part in 参加…，参与…活动
例句：They returned to take part in the season's opening game.
他们回来参加本赛季的开幕赛。

2. The idea for a water-powered vehicle came from Mason Peck, who works at Cornell University.

come from 源自;来自某处;出生于
例句：Where did you come from?
你打哪儿来？

3. “A lot of the mass we send into orbit these days is in the form of rockets – the only way we get anything into space,” he said, in a Cornell press release.

in the form of 用…的形式
例句：There have been many improvements in the form of cars.
汽车的形状已有很多改进。
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