For such a powerful hunter, the polar bear lives a precarious existence.

然而就是这样强大的猎手其生存却充满了不确定性。

Those on precarious part-time contracts are particularly vulnerable to being fired while on maternity leave.

至那些没有保障的兼职合约员工极有可能在休产假期间被解雇。

Advocates say the migrants precarious status makes them vulnerable to exploitation.

倡导者说，移民地位岌岌可危，这使得他们很容易受到剥削。

BBC's Daniel Gallas who's based in Sao Paulo says her situation is precarious.

本台驻圣保罗记者丹尼尔·加拉斯表示，罗塞夫地位岌岌可危。

Often the first snows had already arrived, making the journey precarious.

经是第批雪已经到来，使得旅程变得危险。

This puts the dinosaur in a very precarious position if it happens to get attacked.

如果圆顶龙在这时遭到攻击它会处危险的境地。

Even the last hermit in his cave will have found out by now that just saving his precious hide has become a very precarious endeavour, indeed.

就连个洞里的隐居者现在也已经发现要保护他那宝贵的隐藏之地确实都成了很危险的任务。

That tantalizingly precarious balance between confidence in my ability to execute the trick safely and excitement for the unpredictable experience to come.

对安稳完成动作的自信，对即将到来的未知体验的兴奋，这两者之间那种摇摇欲坠的平衡让我欲罢不能。

Rising temperatures threaten this precarious environment.

不断上升的气温对本就缺乏稳定性的这环境无异种威胁。

And while so much progress has been made since those first games, the world outside seems to be in an even more precarious state.

尽管自首届运动会以来已经取得了巨大进步，但外面的世界似乎更加岌岌可危。

My income comes from touring so it has put me in a bit of a precarious situation, but I actually feel quite good about it – it feels like the right thing to do in this moment.

我的收入来自巡演，所以那让我的处境有些艰难，但我对此感觉很好——感觉在这个时刻做这件事是对的。

The Dutch salvage company brought into help is sending a crane and two tug boats heavier than these hoping to free the ship before its precarious position gets worse.

来协助的荷兰打捞公司正在派遣台起重机和两艘拖船，它们比这些船重，希望在状况恶化之前把船解救出来。

And it also helped create Pakistan's precarious relationship with water.

这也造成了巴基斯坦与水的不稳定关系。

Their situation is precarious, but cannibalism for them isn't a last-ditch attempt to avoid starvation.

它们的情况很危急，但对它们来说，同类相食并不是为了避免饥荒的孤注掷。

Despite their good health, life for young tigers is precarious.

尽管幼虎身体健康，但它们的生活却岌岌可危。

The phrase " on thin ice" means to be in a precarious or dangerous situation.

“on thin ice”这个短语的意思是处不稳定或危险的境地。

The reason Josphat's fishing pools are far from safe is their precarious position.

约瑟法特的捕鱼地点之所以危险是因为他们所处的位置。

With one shaky ceasefire following another, the situation in the capital Khartoum remains precarious.

接连的停火并不稳定，首都喀土穆的局势仍然岌岌可危。

So it's a very precarious position that Liz Truss finds herself in.

所以利兹·特拉斯发现自己处个不稳定的境地。

Food security in this part of the state is precarious.

该州这地区的粮食安全岌岌可危。