convict

v.（在法庭上）宣判…有罪，證明…有罪
to decide officially in a law court that someone is guilty of a crime

He has twice been convicted of robbery.

caustic

a.（話語或說話方式）刻薄的，尖刻的，挖苦的
A caustic remark or way of speaking is hurtful, critical, or intentionally unkind.

She's famous in the office for her caustic wit.

bolt

n.（門窗上的）插銷，閂
a metal bar on a door or window that slides across to lock it closed

I closed the window and drew the bolt.

n.閃電，霹靂
a flash of lightning that looks like a white line against the sky

The house next to ours was struck by a bolt of lightning.

v.（尤指因受到驚嚇而）奔跑，快跑
to move very fast, especially as a result of being frightened

Frightened by the car horn, the horse bolted.

bold

a.勇敢的，無畏的
not frightened of danger

The newspaper made the bold move the bold step of publishing the names of the men involved.

a.醒目的；顯著的；色彩艶麗的；輪廓清晰的
strong in color or shape, and very noticeable to the eye

They painted the kitchen in bold colors.

audacity

n.大膽；勇氣
courage or confidence of a kind that other people find shocking or rude

It took a lot of audacity to stand up and criticize the chairman.

arbitrary

a.任意的；隨機的；隨心所欲的
based on chance rather than being planned or based on reason

Did you have a reason for choosing your destination or was it arbitrary?

a.專斷的；武斷的；霸道的
using unlimited personal power without considering other people's wishes

The company has been the subject of an arbitrary take-over.

agony

n.（肉體或精神的）極度痛苦
extreme physical or mental pain or suffering

We've both suffered agonies of guilt over what happened.