冷静的英文：
calm
cool-headed

参考例句：

"Calm down, sir. What's the trouble?"
"冷静点,先生。出了什么事?"

A journalist should be a dispassionate reporter of fact.
记者应当是对事实作冷静报导的人

A: Let me beat him up. B: Hold your horses!
A:让我揍他一顿!B:冷静点!

They remained stolid and motionless
她们仍旧倔强冷静，坐着不动。

Sinner down, Kelly, no point of argue with him.
冷静些凯利,没有必要同他争论。

Simmer down, Kelly, no point of arguing with him.
冷静些，凯利，没有必要同他争论。

She can keep cool even under heavy pressure of anger
即使是在十分气愤的情况下她也能保持冷静

He would be courageous calm and self assured, but neither pompous nor hypercritical.
他勇敢、冷静、自信，既不傲慢，也不虚为。

My sober mind was no longer intoxicated by the fumes of politics.
我冷静的头脑再也不会被政治的烟气所陶醉了。

Her quiet lucidity startled him, but did not mislead him into thinking her insensible
她如此冷静而理智，使他感到惊异，但他并没有因此误认为她没有感情。

calm是什么意思：
adj. （水面）平静的，（天气）无风的；镇定的，沉着的，宁静的
n. 平静；无风；镇定；安静
v. 使平静；使镇定；安静下来

The tempest calmed.
暴风雨停息了。

You must keep calm in an emergency.
在紧急关头要保持镇静。

calm zone of Cancer
北半球副热带无风带

cool是什么意思：
n. 凉爽
adj. 凉快的；冷静的；冷漠的；冷色的
adv. 冷静地
v. 使凉快；平息

Their love has cooled.
他们的爱情冷却了。

That jacket is so cool.
那个唱片套太酷了。

burner cooling system
[烧毛机]火口冷却装置

headed是什么意思：
n. 头，头部；头痛；理解力；首脑，首长
v. 作为…的首领；站在…的前头；给…加标题；出发；前进；驶往；用头顶
adj. 头的；在前头的；在顶端的；主要的；首要的

Heads will roll

a head of a gang; a ringleader; a chieftain; the head of a group; a cock
头目

They hit their heads together when heading the ball.
争顶头球时，二人的头撞在了一起。