get off the ground

基本解释

Putnam's surprising answer is that we cannot coherently think that we are brains in vats, and so skepticism of that kind can never really get off the ground.
普特南给出的惊人的答案是，我们不可能前后一致地认为自己是“缸中之脑”，因而对此的怀疑永远不能取得进展。
And many relatives of kidnapping victims are so intimidated by the threats they receive that they halt their investigations well before they get off the ground.
许多绑架受害者的家属被他们收到的威胁恐吓到了以至于还没来得及取得任何进展就被迫中止了他们的调查。
If the consequences of failure entail not just legal bankruptcy but also personal ruin, the venture capital model will not get off the ground.
如果失败不仅导致企业在法律上破产，而且造成个人倾家荡产，那么风险资本这一模式就难以得到发展。

He says dinosaurs probably could not get off the ground to fly.
So the question can't even get off the ground.
因此这个问题根本是无稽之谈
耶鲁公开课 - 死亡课程节选
But finally, Reiner says, well, thank you for visiting us, it's all very wonderful, but you know our audience would really like to know; it seems like a simple question but it's awfully hard to understand, but how can a great, big, enormous, heavy thing like this airplane get off the ground?
但最后雷纳说到,谢谢你的来访,太棒了,但你知道吗,我们的观众非常想知道,这问题貌似简单,但却很难让人明白,问题是,像这么一个巨大且沉重的飞机,是如何飞起来的呢
耶鲁公开课 - 古希腊历史简介课程节选

They are so top heavy and so fat they can't get off the ground.
NPR: Wild Things Thanksgiving