The coachman had a thin lash.是什么意思？

The coachman had a thin lash.

那马车夫有一根细长的鞭子.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

coachman

n. 马车夫；

例句
The coachman asked Candlewick if he wanted to go to Gameland.
马车主人问“蜡烛芯”是否要去游戏王国.

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

thin

adj. 薄的，瘦的，稀少的，细的；vt. 使瘦，使淡，使稀疏；vi. 变薄，变瘦，变淡；adv. 稀疏地，微弱地；

例句
'But where could they have gone?' he demanded. 'They can't just vanish into thin air!'...
“但是他们可能去哪里呢？”他追问道，“他们不可能就神秘消失了!”

lash

n. 鞭挞，鞭子，责骂，讽刺，眼睫毛；vi. 急速甩动，猛击，抽打，严厉谴责；vt. 鞭打，摆动，激励，煽动，捆绑；

例句
She went quiet for a moment while she summoned up the words to lash him...
她沉默片刻，寻思着抨击他的话语。