You need a cool head and nerves of steel on the way to your dream.

在追求梦想的途中，你需要有冷静的头脑和非常的魄力。

Ashley Wilkes was elected as the captain, because he was the best rider in the county and because his cool head was counted on to keep some semblance of order.

艾希礼·威尔克斯被选做队长了，因为是他是县里最出色的骑手，而且头脑冷静，能维持某种表面的秩序。

He has a cool head at all times.

他不论什么时候都有清醒的头脑。

Keep a cool head and a warm heart!

保持一个冷静的头脑和一颗温暖的心！

Keep a cool head during the crisis.

在危急关头要保持清醒的头脑。