The beakers were tagged with a number.是什么意思？

The beakers were tagged with a number.

烧杯都标有数字.

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。

beakers

n. 高脚杯( beaker的名词复数 )，烧杯；

例句
The beakers were tagged with a number.
烧杯都标有数字.

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

tagged

[医]标记的，加标记的，加了标记的；

例句
The most important trees were tagged to protect them from being damaged by construction machinery.
最珍贵的树木都被贴上了标签，以防被建筑机械毁坏。

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。

number

n. 数字，数量，号码，编号；v. 标号，总计，把…算作；

例句
He was ably assisted by a number of other members.
他得到其他一些成员的鼎力相助。