然而，铅中毒是不可逆的。

Lead poisoning, however, is irreversible.

有些疾病是不可逆的。

Some medical conditions are irreversible.

法院的决定是不可逆的。

The decision made by the court is irreversible.

衰老的影响是不可逆的。

The effects of aging are irreversible.

对环境的破坏是不可逆的。

The damage to the environment is irreversible.

医生说他的脑残是不可逆的。

The doctor said his brain damage is irreversible.

决定做出后，情况变得不可逆了。

The situation was irreversible after the decision was made.

气候变化已经达到了不可逆的阶段。

Climate change has reached an irreversible stage.

这是一个不可逆的生物过程。

It is an irreversible biological process.

这是一个不可逆的过程。

There are irreversible processes.