n.胆小鬼，懦夫
adj.胆子小的

He's such a poltroon, he doesn't have the courage to confront his problems.
他真是个懦夫，没有勇气面对自己的问题。
The poltroon abandoned his post when the battle became fierce.
这个懦夫在战斗激烈时抛弃了他的岗位。
A true leader would never act like a poltroon in the face of adversity.
真正的领导者绝不会在逆境中表现得像个懦夫。
It takes a poltroon to blame others for his own failures.
把自己的失败归咎于他人的人是个懦夫。
His hesitation proved him to be a poltroon in the eyes of his peers.
他的犹豫不决使他在同龄人眼中显得懦弱。
She couldn't believe her boyfriend was a poltroon who wouldn't stand up for her.
她不敢相信她的男朋友是个不敢为她挺身而出的懦夫。
The poltroonish behavior of the politician disappointed his supporters.
政客的懦弱行为让他的支持者感到失望。
In the story, the protagonist overcomes his inner poltroon to become a hero.
在故事中，主角克服了内心的懦弱成为了英雄。
Don't be a poltroon, speak your mind even if it's against the majority.
别做懦夫，即使与大多数人意见相左也要说出你的想法。
The king's decision to flee the battlefield branded him as a poltroon forever.
国王选择逃离战场的行为使他永远背上了懦夫的标签。