It would be foolhardy to sail in weather like this.

这种天气出航就是瞎冒险。

When he tested an early vaccine on himself, some described the act as foolhardy.

当他在自己身上试验还处于初级阶段的疫苗时，有些人说他的行为是莽撞的。

The pupils wondered if this foolhardy boy had lost his mind.

学生们怀疑这个莽撞的男孩是不是疯了。

Look before you leap. Don't be so foolhardy.

做事要瞻前顾后， 不要这样鲁莽。

Are they fearless or foolhardy?

英勇无畏，还是有勇无谋？

Foolhardy and stupid? Not at all.

一定是又笨又傻吧？并不都是。

It was foolhardy to have refused.

拒绝是极不明智的。

It was a bold, perhaps foolhardy, reaction.

这是一个大胆的(或许有勇无谋的)反应。

It was foolhardy to go swimming alone.

独自一人去游泳真是鲁莽。

He paid for the foolhardy act with his life.

他为鲁莽的举动付出了生命的代价。

It was foolhardy (of him) to go swimming alone.

(他)独自一人去游泳真是鲁莽。

Whether that means I am brave or foolhardy remains to be seen.

这表明我勇敢还是鲁莽有待定论。

If you don't consider these things, then you are being foolhardy.

如果你不考虑这些事情，那你就是个大傻瓜了。

And, like climate change, it may be foolhardy to ignore any of them.

而且，就像气候变化那样，忽视其中任何一种可能都是莽撞的。

His foolhardy attempts to prove himself risked his life on occasion.

有时，他的鲁莽行为甚至会带来生命危险。

They were very foolhardy to jump off the bus while it was still moving.

公共汽车还未停定他们就跳下了车，真是太莽撞了。

It is foolhardy to depend on Middle Eastern countries for our oil supplies.

把我们的石油供应都依赖于中东国家是鲁莽的。

At first, there were only a few such hardy (some would say foolhardy) souls.

一开始，他们只是几个极有勇气(也有人说他们有勇无谋)的人。

It would be foolhardy to predict that China will suddenly give the market free rein.

中国会突然给市场以自由发挥的空间可能是鲁莽的预测。

But only the foolhardy would take this as a chance to make a killing, and start planting again.

不过这回，恐怕只有那些鲁莽的人才会以为这又是一次发大财的机会，再一次开始种植葡萄。

However to attempt to fly any aircraft without professional instruction is extremely foolhardy.

然而，试图在任何飞机飞行专业教学是极其愚蠢。

Acquisitions that only a few years ago appeared a tad foolhardy now seem super-smart, if expensive.

仅是几年前出于昂贵而稍显鲁莽的购置，如今却显得超智能。

Yahoo's resistance to a takeover by Microsoft looks foolhardy to some investors and Wall Street analysts.

对于某些投资者和华尔街分析师而言，雅虎拒绝微软的收购看上去有勇无谋。

But to think that travel is on the verge of a resurgence in terms of cash being thrown into it is foolhardy.

但是仅仅由于现金在大把的投入，就认为旅游业正在复苏的边缘是非常草率的。

It seems as foolhardy not to discuss the option as it is to maintain such an awkward silence over China's rise.

就像对中国的崛起保持尴尬的沉默一样，不讨论这一选项似乎也是很鲁莽的行为。

The enterprise seems foolhardy, and Stewart does not justify it beyond a vague feeling that he wants adventure.

企业似乎有勇无谋，和斯图尔特并不能证明它超出了模糊的感觉，他想冒险。

"At present, it would be foolhardy to say one [theory] looks better than the other," says CERN theorist John Ellis.

“目前，要说某种[理论]看起来比其他更好些，这将是鲁莽的，”欧洲核子研究中心的理论家约翰·埃利斯(John Ellis)说。

The brave, and the foolhardy, run with the bulls in Pamplona, Spain, at the festival of San fermin, dating back 420 years.

有420年历史的西班牙潘普洛纳市圣佛明节上，勇敢的、鲁莽的人们与牛共奔。

It would be foolhardy to expect much natural "convergence" between these economies in order to achieve closer integration.

如果指望这些经济体能自然“融合”从而实现更紧密的一体化，则显得有勇无谋。