Because space is a very risky business—and it always has been.

这是因为太空事业是个高危行业，而且一直以来都是如此。

No one knows for sure, and making predictions is a risky business.

没有人确切的了解，预测也是一件很危险的事情。

For example, starting a new restaurant is a risky business venture these days.

例如，如今开办一家新餐厅是一项有风险的商业冒险。

If you're a tree, seed dispersal and germination is a pretty risky business.

如果你是一棵树，你会明白把种子散播出去并生根发芽是一件很具有风险的事情。

It's a risky business commenting on anything to do with the Thai royal family.

在泰国，对皇室指指点点是很冒险的事。

It is a risky business. The farmers have to spend a lot more time looking after their crops.

这是冒险的行为。农民们必须花费更多时间来照看他们的作物。

A person experiencing mania might invest all of their money in a risky business venture or behave recklessly.

躁狂中的人可能会把自己所有钱拿去做有风险的商业投资或鲁莽地行动。

Killing a buffalo is a risky business. But these wolves have hunted buffalo for hundreds, if not thousands, of years.

猎杀野牛是件很危险的事，但这些狼群靠捕食野牛为生没几千年也有数百年了。

Both of them seem like risky business at this point.

在这一点上，这两件事似乎都是冒险的。

Drawing conclusions about the one from the other is thus a risky business.

因此，从另一个中得出关于一个的结论是一项有风险的工作。

And so Reynolds is not really, he's too risky business to me.

所以雷诺兹并不是真的，他对我来说风险太大了。

It's a fearfully risky business, and I, for one, was against the plan.

这是一项风险极大的业务，而我个人反对这个计划。

The offending risky businesses will be moved to a " non-core" unit, and quickly wound down.

违规的风险业务将被转移到“非核心”部门，并迅速关闭。

But siege was a risky business and good preparations were the key  to success for both sides.

但围攻是一件危险的事情，良好的准备是双方成功的关键。

She said, " Growing quickly allows organisms to escape the risky business of being small for a long part of their life history."

“快速生长使生物体能够在其生命历史的很长一段时间里逃脱小体型的风险。

She knew it would be risky business sending Pork south to buy clothes, when the horse might be captured by either Yankees or Confederates.

她明白，如果打发波克到南边去买，那是很冒险的事，因为无论北方佬还是联盟军队都可能把马掳去。

Even prehistoric killers like Deinonychus and Tyrannosaurus Rex know that no matter how many tools they have at the ready, attacking plant eaters is risky business.

甚至史前最凶猛的恐爪龙以及雷克斯霸王龙都知道，无论它们准备了多少狩猎工具，袭击食草动物还是有很大风险的。

It means to take a chance or a risk. You can stick your out neck out by investing a lot of money in a risky business deal.

一种是冒险。你在这笔风险很大的生意上投了很多钱，这是一种冒险。

One job is at a safe stable company and the other is with a new company with a thin balance sheet in a risky business.

一份工作是在一家安全稳定的公司， 另一份工作是在一家新公司， 该公司的资产负债表薄弱， 且业务风险较高。

Considering that safe anaesthetics and antibiotics were only discovered in the 19th and 20th centuries, it was a truly painful and risky business to go under the knife in the past.

考虑到安全的麻醉剂和抗生素是在 19 世纪和 20 世纪才被发现的，在过去动刀确实是一件痛苦和冒险的事情。