is not

That question is not within the scope of this talk.

那个问题不在本次会谈范围之内。

It is not known what causes the disease.

这种病的起因不明。

A broadcast of the speech was heard in San Francisco, but it is not known if this was live.

在旧金山听到了这次演说的转播，但不知道是不是实况。

The subject is not, properly speaking, a science.

严格地说，这门学科不是科学。

The exhibition is not open to the general public.

这次展览不对公众开放。

Sorry, my English is not very good.

对不起，我的英语不太好。

This is not a fit place for you to live.

这个地方不适合你居住。

The medicine is not for internal use.

这种药不可内服。

My memory is not clear on that point.

那一点我记不清了。

Failing one exam is not the end of the world.

一次考试不及格并非世界末日。

Nevertheless when he passed the pass riding his white horse, he would pay the horse-passing tax and never argued with those guards that a white horse is not a horse.

然而，他骑白马通过关卡时，还是如数交纳马匹过关费，并不和关卡的官吏争执白马是不是马。

The cause of the fire is not yet known.

火灾的原因尚不清楚。

It is not clear what they want us to do.

我们不肯定他们要我们做什么。

The success of the system is not in doubt.

这种制度的成功确定无疑。

The problem is not primarily a financial one.

这个问题基本上不是财政问题。

It is not within my power to help you.

我是爱莫能助啊。

The situation is not good but we live in hope that it will improve.

情况不好，但我们依然希望会好转。

Her work is not up to standard.

她的工作不合格。

The college is not an officially recognized English language school.

那所学院不是官方认可的英语学校。

The house is not open to the public.

这所住宅不对外开放。

As you're aware, this is not a new problem.

正如你所了解的，这不是一个新问题。

The painting is not representative of his work of the period.

这幅画不是他在那个时期的代表作。

It is not merely a job, but a way of life.

这不仅仅是一份工作，而且是一种生活方式。

The street is not safe for children to play in.

孩子在大街上玩不安全。

It is not often that you get such an opportunity.

你得到这样的机会，可不是常有的事。

The company's financial position is not certain.

这家公司的财务状况不明朗。

Price is not always an accurate marker of quality.

价格并不总是质量的准确标志。

The space available is not adequate for our needs.

现有的空间不能满足我们的需要。

One should never criticize if one is not sure of one's facts.

一个人如果对自己掌握的事实没有把握，就绝不该随便批评。

This is not a problem we should take lightly.

这个问题我们可不能掉以轻心。