Next time, when we want to use our laptops or our smartphones in public places which offer free WiFi networks, please think it twice or take safe measures before using them.

下次，当我们想在提供免费 WiFi 网络的公共场所使用笔记本电脑或智能手机时，请三思而后行或者在使用之前采取安全措施。

youdao

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。

youdao

The term sugar-free may generate false security because many people may automatically believe that sugar-free products are safe on the teeth.

无糖这个词可能会产生虚假的安全感，因为很多人可能会自然而然地认为无糖产品对牙齿是安全的。

youdao

And the dymaxion car -- which could have provided safe, pollution-free transportation using little gasoline -- was never produced.

VOA: special.2010.05.30

Or was Amiri actually free and safe, pursuing studies in the U.S.

VOA: standard.2010.07.13

In a further effort to spread the safe sex message, hotel guests in Papua New Guinea will soon find complimentary condoms alongside the free soap and shampoo in their rooms.

VOA: standard.2009.04.04

"They have paid a terrible price to keep us safe and free, " Harry said.

CNN: STORY HIGHLIGHTS

His steadfastness in trying to keep America safe and free is an inspiration.

CENTERFORSECURITYPOLICY: President Bush meets with Patriot Act Advocates

As with other supplements, just because a product is natural does not mean that it is completely safe and free of side effects in everyone.

CNN: How can I pick the healthiest brand of red yeast rice?