His discovery extinguished the achievements of his colleague.是什么意思？

His discovery extinguished the achievements of his colleague.

他的发现使他同事的成就黯然失色.

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

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

discovery

n. 发现，发觉，（剧情的）发展，被发现的事物，[法]显示证据；

例句
...the discovery that both his wife and son are HIV positive.
查出他妻子和儿子艾滋病病毒检测都呈阳性

extinguished

v. 使熄灭，扑灭( extinguish的过去式和过去分词 )，使…不复存在；

例句
The lights are extinguished as soon as the news conference is over.
新闻发布会一结束，灯光就熄灭了。

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。

achievements

n. 成就( achievement的名词复数 )，成绩，功绩，达到；

例句
He compared the achievements of the British and the French during 1916 and concluded that the latter were better all around.
他比较了1916年英国人和法国人的成就，结论是法国人在各方面都做得更好。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

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

colleague

n. 同事，同僚，同

例句
A colleague of mine in Milan devised the following very clever little experiment.
我在米兰的一个同事设计了下面这个非常巧妙的小实验。