I wasn't sure how fast to go.

我不确定有多远。

The date of his departure is uncertain.

他离开日期尚未确定。

It is not certain when it will take place.

不能确定这事什么时候会发生。

I doubt if it will rain today.

我不能确定今天是否会下雨。

They fixed on him to speak on their behalf.

他们已经确定他作为代表发言。

Objective To confirm the serum pharmacochemistry of Xingnao Gutta Pills.

目确定醒脑滴药物化学。

A scan determines the position of the baby in the womb.

扫描可以确定胎儿在子中。

We got a fix on the missile launching site.

我们确定了导弹发射场。

They are trying to decide where to situate the hospital.

他们正设法确定医院修建地点。

The prognosis for the economy is uncertain.

对经济前景预测还不确定。

His succession as headmaster was not in any doubt.

他继任校长是确定无疑。

"Are you sure Lambie will come back today?"

"你确定小羊今天会回来吗?"

I myself am unsure how this problem should be handled.

我自己不能确定这个问题应该怎样处理。

It is not yet certain who will succeed him.

谁来接他班还未确定。

In my opinion, the curvature was determined experimentally.

依我看，这种曲度是根据实验确定。

She is as yet undecided in which direction she wants to make her future career.

她还没有确定自己事业发展方向。

She is responsible for the determination of wage levels within this company.

她负责确定这家公司职员工资标准。

Objective to determinate recipe and producion craft of Armillarisin A Injection.

确定亮菌甲素注射液处方及生产工艺。

It is possible to assign an exact date to this building.

这座建筑物确切年代是可以确定。

Our holiday plans are still at an indeterminate stage.

我们度假计划仍处于未确定阶段。