Keep a level head and phone the Fire Department.

保持冷静，打电话给消防署。

We should keep a level head when we are in danger.

我们必须在遇到危险的时候保持镇静。

We should learn to keep a level head in an emergency.

在紧急情况，我们应学会保持头脑冷静。

We should learn to keep a level head in an emergency.

遇到紧急情况，要保持冷静，不要惊慌。

They will need to keep a level head to deal with the problems they will face in 2011.

他们需要保持冷静的头脑来处理2011年即将面临的问题。