He changed his overalls for a suit.是什么意思？

He changed his overalls for a suit.

他脱下工装裤, 换上了一套西服。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

changed

[医]变化的，改变的；

例句
Since the Sixties, afforestation has changed the Welsh countryside.
60年代以来，植树造林已经改变了威尔士的乡村面貌。

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。

overalls

n. 工装裤，长罩衣( overall的名词复数 )，工装裤，工作裤，套裤；

例句
An elderly man dressed in faded overalls took the witness stand.
一位穿着褪色吊带工装裤的老人上了证人席。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

suit

n. 一套外衣，西装，套装，诉讼，恳求；vt. 适合于（某人），尤指服装、颜色等相配，合身，适宜；vi. 合适，相称；

例句
...a shimmering suit of aquamarine satin.
海蓝色缎子做的华贵套装