His employer greeted him with an effusion of relief.是什么意思？

His employer greeted him with an effusion of relief.

他的雇主看到他大松一口气。

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。

employer

n. 雇主，老板，雇佣者；

例句
Her employer was in conference with two lawyers and did not want to be interrupted.
她的老板在和两位律师谈事情，不想有人打扰。

greeted

v. 欢迎( greet的过去式和过去分词 )，迎接，致意，（以某种方式）对…作出反应；

例句
The news was greeted with considerable popular acclamation.
消息赢得了相当普遍的欢呼。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

effusion

n. 流出，喷出；

例句
His employer greeted him with an effusion of relief...
他的雇主看到他大松一口气。

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。

relief

n. 宽慰，安心，免除，减轻，救援物资，代班人；

例句
The 20-strong advance party will be followed by another 600 soldiers as part of UN relief efforts.
作为联合国救援行动的一部分，在这支由20多人组成的先头部队之后还将增派600名士兵。