Both Las Vegas and San Jose have tried to jump-start redevelopment by building shopping malls in the urban core; both attempts failed utterly.
拉斯维加斯和圣何塞都尝试过在城市核心区建设大型购物中心，带动城市复兴，但它们的努力都完全失败了。
There have been only two very small trials comparing angioplasty with exercise and both failed to show any long term advantage for angioplasty.
对于比较血管成形术和锻炼带来的效果优劣，目前还只有两次非常小的检验，并且都没有证实血管成形术有任何长期优势。
Although they may have been cheaper and more durable, both the original AstroTurf and its second-generation imitations failed dismally to reproduce the bounce and forgiving nature of grass.
尽管人造草坪又便宜又耐用，但是原版的阿斯·特罗草皮和它的二代仿造品都因为无法具有天然草皮的弹性和良好的柔韧型，因此销量惨淡。
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