美国俚语:a cool head 冷静的头脑

 　　a cool head 冷静的头脑（the ability to stay calm and think clearly in a difficult situation）

　　例句：

　　These are high pressure situations and you have to keep a cool head.

　　在高压力的情况下你必须保持冷静的头脑。

　　Professional trustees are trained to handle hostility¹ and usually manage to keep a cool head.

　　专业的受托人受过训练来处理敌意，他们通常都能保持冷静的头脑。

1 hostility   

n.敌对，敌意；抵制［pl.］交战，战争

参考例句：

• There is open hostility between the two leaders.两位领导人表现出公开的敌意。
• His hostility to your plan is well known.他对你的计划所持的敌意是众所周知的。