He studied the cards, each with its different numerals.是什么意思？

He studied the cards, each with its different numerals.

他仔细看了看牌, 每张牌上的数字都不相同.

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。

studied

adj. 有计划的，故意的，深思熟虑的，精通的；v. 学习，研究( study的过去式和过去分词 )，想出，详细地检查，背诵（台词等）；

例句
At college he studied English and did amateur boxing.
大学时，他学习英语，同时还参加业余拳击。

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。

cards

n. 卡（ card的名词复数 ），纸牌，贺卡，信用卡；

例句
The smart ones will have already bagged their seats by placing cards on them.
聪明人早已在座位上放一张卡片占住了位子。

each

adj. 每，各自的；pron. 每个，各自；

例句
They were completely absorbed in each other...
两人彼此倾心。

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。

its

pron. (it的所有格形式)它的，厥；

例句
The government is to accelerate its privatisation programme.
政府将加快其私有化计划的进程。

different

adj. 不同的，各式各样的，个别的，不平常；

例句
Different schools teach different types of syllabus, from the highly academic to the broadly vocational.
不同的学校有不同的教学计划，从高度学术的到普通职业教育的，不一而足。

numerals

数码；

例句
Such numerals with semantic fuzziness have the rhetorical function of figuration and exaggeration.
这种模糊语义的数字具有比喻或夸张的修辞功能.