What makes downhill cycling is such a terrifying pursuit is that the bike isn't only powered by the cyclist's legs,
but also by our old friend gravity.
这是CNN 10 新闻记者说的原话。
但我感觉上面的句子有语法问题,多了一个谓语。
应该改成What makes downhill cycling such a terrifying pursuit,要去掉is.
不知对否?
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