cautious = caut(小心) + ious(…的) = 谨慎的, 小心的
precaution = pre(预先) + caut(小心) + ion(表名词) = 预先小心→预防措施
abrasion = ab(表加强) + ras(刮擦) + ion(表名词) = 磨损
abstraction = abs(离去) + tract(拉) + ion(表名词) = 被拉开→抽象
The Chancellor is a man of caution.
In the meantime, they say they are exercising an abundance of caution.
n. to throw caution to the wind：不顾一切；鲁莽行事
I threw caution to the wind and rode as fast as I could.
You must proceed with extreme caution.
Extreme caution should be exercised when buying part-worn tyres.
There was a note of caution for the Treasury in the figures.
The demonstrators who were arrested have been released with a caution.
My tutor solemnly cautioned me that I might not pass my exams.
He cautioned that opposition attacks on the ruling party would not further political co-operation.
The statement clearly was intended to caution Seoul against attempting to block the council's action again.
They were taken in by the police and cautioned.
The two men were cautioned but police say they will not be charged.
Tony cautioned against misrepresenting the situation.