Hmm, I'm not so sure about that.

我对此可不敢确定。

I'm not so sure about that. All right, thanks, Mike.

这点我可不能确定。好吧，谢谢你，迈克。

Whether this individual was thirty-five or fifty years of age, I could not precisely state.

这个人三十五岁还五十岁，我可不能确定。

I don't know about that. - Just go.

可我也不确定 -去吧。

Glad to be back? - I'm never sure. When I'm in London, I long for Yorkshire.

回来了高兴吗？ - 我可真不确定，在伦敦时，我渴望回到约克郡。

The following July it became the first ship to fly past our planetary neighbor—that we're sure of.

第二年的7月它成为首个飞过我们目前可确定的邻居行星的飞船。

Well, you know, I totally would, but I'm not sure we like the same sorts of music, you know?

我很高兴，可我不确定我们玩的同一类的音乐。

Now, essentially what we've had set up this week is a high-pressure system essentially parked over the central U.S.

现在，基本上，本周可确定的一个高压系统停在美国中部。

" Pretty sure" is not very scientific. Is this how you normally work? Just hunches and guesses and stuff?

“相当确定”可不够科学。你通常就这么工作的吗？就靠感觉和猜测什么的。

When lightning sparks across the sky, it sends out low-frequency radio waves that researchers can use to determine its location.

划过天空之时，会释放出低频无线波，研人员可利用这种波确定的位置。

NOW, THE SYSTEM WAS DESIGNED TO PRIORITIZE ACCORDING TO HOW MUCH WATER WAS AVAILABLE.

现在，系统设计为根据可用水量确定优先级。

The different patterns in the venom can be used to determine the snake species.

毒液中的不同图案可用于确定蛇的种类。

" Ascertain" simply means to make certain of.

" 确定" simply means to make certain of.注：根据要求，此处保留了英文解释部分不变，仅将“ascertain”翻译为“确定”。若需完全翻译成中文可改为：“确定” simply 表示使某事确定无疑。但为了忠实于原文结构，采用了上述翻译方式。

They identified marketable skills and sources of job leads.

他们确定了可市场化的技能和潜在的就业机会来源。

This is true even if the reversionary interest is determinable or defeasible.

即使回溯权益可确定的或可废止的， 这一事实依然成立。

The test helps you identify your top 5 strengths with an emphasis on career-related abilities.

该测试可帮助您确定您的 5 大强项，重点与职业相关的能力。

It was dark, but I know what I saw.

天很黑 可我确定我看见了。

But I'm not sure who we're voting for.

可我还不确定投票给谁。

But I'm not quite sure how you're doping that out.

可我不太确定你的计划什么。

Lord Balon grunted. " We shall see" .

那好久以前的事了巴隆大王哼了一声，" 这我可不敢确定。"