Pollutants are constantly being released into the atmosphere.是什么意思？

Pollutants are constantly being released into the atmosphere.

污染物质正在不断地被排放到大气中去.

pollutants

n. 污染物质（尤指工业废物）( pollutant的名词复数 )；

例句
Many people are allergic to airborne pollutants such as pollen.
许多人对空气传播的污染物过敏，比如花粉。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

constantly

adv. 不断地，时常地，始终，一直；

例句
Her dedication constantly astonishes me.
她的奉献精神总是让我震惊。

being

n. 存在，生物，人，要素，本质；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

released

v. 释放( release的过去式和过去分词 )，放开，发布，发

例句
At 3.30 p.m. a bulletin was released announcing that the president was out of immediate danger.
下午3点30分发布了公告，称总统已经暂时脱离危险。

into

prep. （表示方向）进入…中，（表示所属）输入，（表示状态）进入…状态，（表示时间）持续到；

例句
By 1838, the abolitionists had shamed parliament into ending slavery in British colonies...
到1838年，废奴主义者迫使议会出于道德压力而废除了英国殖民地的奴隶制。

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。

atmosphere

n. 大气，空气，大气层，风格，基调，气氛；

例句
There's been an atmosphere of anticipation around here for a few days now...
几天来这里一直有一种满怀期待的气氛。