Fear is often what'll keep us from getting something done, let alone something great.

恐惧往往使我们不能把事情做好，更遑论把事情做卓越。

youdao

Obviously, you cannot deploy something, let alone design it, unless you define it properly.

显然，如果不能正确地定义一个概念，就不可能设计和部署它。

youdao

And if something can't be measured, it's hard even to argue about, let alone agree on.

而且如果某些事情不能被计量，能否进行争论都很难，更何况取得一致意见。

youdao

It is hard enough to take full advantage of an eDiscovery platform, let alone something with much more functionality.

FORBES: eDiscovery 2012: The Year In Review

The review concludes with a recommendation for close monitoring of what it calls "indicators of potential violence, " as though that potential is something that can be reliably ascertained, let alone precluded, without acknowledging the underlying cause.

CENTERFORSECURITYPOLICY: Not saying the unsayable

But let me tell you something, Barack Obama cannot do this alone.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event