Why all the precautions in here ?

这些防备干吗用的？

Some cannot afford even the most basic health precautions .

有些人甚至承担不起最基本的健康预防措施。

So it was important to take precautions against bad behaviour .

因此，重要的是采取措施预防不良行为。

It 's not wise to drink graywater or handle it directly , but with some basic precautions , graywater use is safe .

直接饮用和处理废水并不是明智之举，但是只要有基本的防范措施，废水使用还是很安全的。

Investigators want to know how a venue apparently lacking even basic safety precautions had been licensed in the first place .

火灾调查员不明白的是，该夜总会连最基本的安全保护措施都没有，最初的营业执照是如何取得的。