We must take measures to ensure safety.

我们必须采取措施保证安全。

We need to take measures to prevent fire.

我们需要采取措施防止火灾。

We need to take measures to prevent fires.

我们需要采取措施防止火灾。

We need to take measures to reduce pollution.

我们需要采取措施来减少污染。

We need to take measures to escape pollution.

我们需要采取措施免受污染。

We must take measures to prevent pollution.

我们必须采取措施阻止污染。

We need to take measures to prevent pollution.

我们需要采取措施防止污染。

We need to take measures to recover our losses.

我们需要采取措施追回我们的损失。

We need to take measures to diminish pollution.

我们需要采取措施来消减污染。

We must take measures to improve air quality.

我们必须采取措施来改善空气质量。