To be perfectly safe, keep them leashed for the first few hours, and feed them separately for the first few days.

要绝对安全，使他们的头几个小时牵引，他们分别为第一和饲料几天。

youdao

Now I know that for some people this might be quite a frightening thing to do, but it is perfectly safe.

现在我知道，对一些人来说，这做起来可能是一件相当可怕的事情，但它是完全安全的。

youdao

While most over-the-counter herbal supplements are perfectly safe, some of the pills you may be taking could be harmful to your health.

尽管大部分的非处方药草补充剂都是十分安全的，但也有一些药剂服用的话可能会存在副作用。

youdao

To be perfectly safe, drain the cooking water.

NPR: Falling in Love with Limas

It might be difficult to hear, but we can't be perfectly safe all the time.

CNN: Surveillance state no answer to terror

So we will start by detaining people who come from countries with perfectly safe records who are not likely to be suffering persecution at all and we shall build up from there.

BBC: News Online