The treatment will be tried out on human beings only after it has been shown to be safe and foolproof in animals.
该疗法只有在动物身上证明安全、万无一失后才会在人体上试用。
You'll be relieved to know your jobs are safe.
现在知道你们的工作保住了，可以放心了。
I took some extra cash just to be on the safe side.
我多带了一些现金，以防万一。
Their hope, and their expectation, was that she was going to be found safe and that she would be returned to her family.
他们的希望和期盼是她被找到时安全无恙并被送回她家。
Mr. Thomas would be given safe passage to and from Jaffna.
托马斯先生将会得到往返于贾夫纳的安全通行许可。
Don't be afraid to have this checked by a doctor – better safe than sorry!
别怕把这个让医生检查一下–以免吃后悔药！
It's safe to assume (that) there will always be a demand for new software.
可以肯定地认为，人们总会需求新的软件。
You might still want to go for an X-ray, however, just to be on the safe side.
但你也许还想去拍张X光片，为保险起见。
If the tires are safe, it will be easy to drive.
如果轮胎安全了，驾车也就省心了。
As soon as it's safe enough to be outside, couriers start distributing accumulated mail on the still-accessible routes.
只要外出足够安全，快递员就开始在仍然可以通行的路线上分发之前累积的邮件。
As soon as it's safe enough to be outside, couriers start distributing accumulated mail on the still accessible routes.
一旦外面足够安全，邮递员就开始在仍可通行的路线上分发堆积的邮件。
These safe-to-eat insects can be found and ordered on the Internet.
这些可以安全食用的昆虫可以在网上找到并订购。
To be absolutely safe, Juan asked his roommate, who was not a geology major, to listen to the speech.
为了保证万无一失，胡安让他的非地质专业的室友来听他的演讲。
The software that is used to direct the cars may not be safe enough.
用来引导车辆的软件可能不够安全。
It wouldn't be safe for him to be left to himself.
让他一个人呆着不安全。
Rightfully so, because it wouldn't feel safe to be completely authentic and vulnerable with some of our "friends" whom we don't actually know or with whom trust has yet to be built.
理所当然地，因为在一些我们并不真正了解或尚未建立信任的“朋友”面前表现得完全真实和脆弱，会让我们感到不安。
Imagine that this drug were simple to make, safe to take, and could be had for free.
试想一下，这种药制作简单，服用安全，且完全能免费获取。
When societies industrialized, knowledge of farming could be safe to forget.
当社会工业化的时候，关于农业的知识可以被遗忘。
After seeds are brought back from space, they are tested to make sure that the vegetables they grow will be safe to eat.
种子从太空带回后，需要对它们进行测试，以确保它们长出的蔬菜可以安全食用。
In a word, the best way to be safe is to be careful.
总之，保证安全的最好方法就是小心。
Vertical farms would need to be efficient, cheap to construct and safe to operate.
垂直农场需要高效、廉价的建设和安全的运营。
The climbers made a fire during the night in order to be safe in the mountain.
为了安全，登山者们在夜间生起了火。
Alia knew that if the books were to be safe, they must be moved again while the city was quiet.
艾丽娅知道，如果要保证这些书的安全，就必须在城市安静的时候再把它们搬走。
When you think "my parents don't want me to have any fun", it usually means your parents want you to be safe.
当你认为“我的父母不希望我有任何乐趣”时，这通常意味着你的父母希望你是安全的。
Just like other animals, they can find enough to eat, and know when it is safe to be out in the open.
就像其他动物一样，鱼能找到足够的食物，并且知道什么时候外出是安全的。
I knew that Tara would be safe with them, so I gave her to them.
我知道塔拉和他们在一起会很安全，所以把她给了他们。
If fish are able to remember that a certain area contains (容纳) safe food, they will be able to go back to that area without putting their lives in danger.
如果鱼能够记住在某一地方有安全的食物，它们将能够回到那个地方，不会将自己置于危险之境。
To be on the safe side, the researchers suggest that we should use computers less than before, or turn down our screens as much as possible before sleeping.
安全起见，研究人员建议，我们应该比以前更少使用电脑，或者在睡觉前尽可能地把屏幕亮度调低。
It's not always safe to pay over the Internet, so you should be careful.
在网上付款并不总是安全的，所以你应该小心。
Though this vaccine is safe, it might not be as effective as it is expected to be.
虽然这种疫苗是安全的，但它可能不像预期的那样有效。
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