南非的政治变革进程已经到了不可逆转的阶段。

The process of political change in South Africa has reached the stage where it is irreversible.

《柯林斯英汉双解大词典》

我已病入膏肓，到了等死的阶段。

It got to the point where I was so ill I was waiting to die.

《柯林斯英汉双解大词典》

这把她带到了人生的下一个阶段。

It carried her to the next stage of her life.

youdao

So, for example, Wellbutrin, it is very unlikely that it would have thionyl chloride in order to make it, and if thionyl chloride was used at some point in the synthesis, it was not to put that chlorine atom on, it was to put something else on.

比如，安非他酮，用亚硫酰氯来制造它,是不太可能的，而就算在合成过程中的某一阶段用到了亚硫酰氯，它也不会把氯原子加进去，而是把其它东西加进去。

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