严重的问题的英文怎么说

严重的问题的英文：
serious problem

A serious problem in astronomical spectroscopy is imposed by the absorption of light in the earth's atmosphere
地球的大气层对光线的吸收，给天文光谱学带来了严重的问题。

This might raise serious questions over the spatial distribution of the production
这可能对生产量的空间分布提出严重的问题。

Such a theory of ethics issues in three crucial problems
这种伦理学的理论引起了三个严重的问题。

He knows that regular maintenance checkups can help to prevent many serious problems
他知道定期作保养检查可以预防许多严重的问题发生。

Even with these improvements however, the low case scenario will pose serious problems for many countries
即使有了这些改进，低速方案仍将在许多国家产生若干严重的问题。

It is a serious article.
这是一篇发人深省的文章。

do not deny that is a serious blow.
我不否认那是严重的一击。

It is a job requiring serious application.
这是一项需要非常勤奋的工作。

A serious misunderstanding fractured their friendship.
一场严重的误会破坏了他们的友谊。

You have to be very serious in trial courts.
在法庭上，你应该态度严肃。

It was a complex problem.
这是一个复杂的问题。

Is the problem that easy?
问题有那么简单吗?

This is a prime problem.
这是一个有关质数的问题。

These are the resolved problems.
这些是已经解决的问题。

The housing problem is bound up with the problem of gale controls.
住屋问题涉及租金控制问题。