We really don't know a lot about how long a wood frog normally lives, probably just a few years but there is no evidence its longevity.

对于一只树蛙通常能活多久，我们确实知道得不多，可能只有几年，但没有证据表明它能长寿。

youdao

Don't think about how long it has been this way.

不要去想这样子已经持续多久了。

youdao

Then I told my brother and Mother the truth about how long I'd known.

然后我告诉弟弟和母亲真相——我早就知道罗杰犯法的事了。

youdao

We talked last week about how this idea developed a long time ago.

VOA: special.2010.03.12

- So what we're seeing is this is notes from 1902 -- he actually didn't publish any of this work or these ideas that led to Lewis structures until 1916, but his early class notes were used as evidence about how long ago he actually came up with the idea of it.

我们看到的这是，1902，年的讲义-,实际上他直到1916年才发表这些工作或者想法,后来发展成为了路易斯结构，但他早年上课的讲义却成为了他在多久之前,就产生了这个想法的证据。

麻省理工公开课 - 化学原理课程节选

But I don't really know about how long it would take people to hack, like, the general firewall

但我不知道人们具体要用多长时间才能穿过防火墙，

理想是当密码专家 - SpeakingMax英语口语达人

The answer is, some investors are concerned about how long current profits can hold up.

FORBES: Nuclear Energy Producer With Huge Upside Potential

Just think about how long it took cable companies to get customers to bundle services.

FORBES: For Verizon Talk May Be Cheap But Data Isn't

And we can get into a debate about how long the rules should last.

FORBES: Gaming Innovator Trip Hawkins Sees Future in Making Gestures