An ox carried two water kegs strapped across his back.是什么意思？

An ox carried two water kegs strapped across his back.

一条牛背上驮着两只小水桶.

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。

ox

n. 牛，公牛，牛属动物；

例句
Finally, he sees pig passes from bypass of bicephalous ox body again , record: sow comes mediate.
最后, 他又看到一只猪从两头牛身旁路过,便记录到: 母猪来劝架.

carried

adj. 被携带的，被运载的；v. 支撑( carry的过去式和过去分词 )，携带，输送，运载；

例句
The police say they suspect the attack was carried out by animal rights activists.
警方说他们怀疑袭击是由动物权益保护的积极分子们发动的。

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

例句
He has been absent from his desk for two weeks...
他已经有两个星期没有坐在办公桌前了。

water

n. 水，雨水，海水，海域；v. 给…浇水，供以水，加水稀释，流泪；

例句
...a licence to abstract water from the River Axe...
从阿克斯河中抽水的许可证

kegs

n. 小桶( keg的名词复数 )；

例句
An ox carried two water kegs strapped across his back.
一条牛背上驮着两只小水桶.

strapped

adj. 用皮带捆住的，用皮带装饰的，身无分文的，缺钱，手头紧；v. 用皮带捆扎(strap的过去式和过去分词)，用皮带抽打，包扎，给…打绷带；

例句
Make sure you are strapped in very well, or else you will fall out.
一定要系好安全带，否则会摔出去。

across

prep. 穿过，横穿，横过，与…交叉，在…对面；adv. 横过，越过，在对面，交叉，斜对面；

例句
Households accumulate wealth across a broad spectrum of assets...
家庭在以各种各样的资产形式积累财富。

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。

back

n. 背，背部，背面，反面，后面，后部，（椅子等的）靠

例句
He looked back at the abject, silent girl and repeated his question.
他转过头看着这个噤若寒蝉的女孩，又重复了一遍他的问题。