经济气候依然是不确定。
他赞扬了消防员的行动，但承认大教堂的命运尚不确定。
He praised the actions of the firefighters but admitted the fate of the cathedral had been uncertain.
他们的起源是不确定的，但考古学家推测他们是迦南人。
Their origin is uncertain, but archaeologists hypothesize that they were Canaanites.
马铃薯何时被引进欧洲尚不确定，但可能是在1565年左右。
When the potato was introduced into Europe is uncertain, but it was probably around 1565.
我听到一些流言，但都不确定。
私下里说，我不确定这没有超出他们的理解。
Confidentially, I am not sure that it wasn't above their heads.
他们尽力保护自己免受困难和不确定因素的影响。
They tried to buffer themselves against problems and uncertainties.
由于对这个评论的含义不确定，赖尔选择了保持沉默。
Unsure of the meaning of this remark, Ryle chose to remain silent.
“我不确定。”布朗夫人说。
她不确定自己是否能做到。
我不确定具体日期，但我完全同意。
我们不确定这场大流行病何时结束。
我不确定我的建议对你是否有用。
我仍然不确定竞争到底意味着什么。
今天他们仍然不确定火星上是否有生命。
我看着他笑了笑，不确定自己的角色。
她不确定父亲是否理解这一点。
科学家还不确定塑料是否对人类有害。
The scientists aren't sure if the plastic is harmful to humans.
我们下周可能会举行毕业典礼，但我不确定。
We might have a graduation ceremony next week, but I'm not sure.
我们现在仍然不确定英国最终什么时候会离开欧盟。
We are still unsure now when the UK will leave the European Union at last.
那个人可能是这家医院的医生，但我不确定。
The man might be a doctor in this hospital, but I'm not sure.
我不确定我的腿能不能在比赛前恢复。
我不确定即使地球的温度得到控制，冰川是否能再生。
I'm not sure whether the glaciers can regrow even if the planet's temperature is controlled.
科学家们还不确定这些化学物质会如何伤害动物。
Scientists aren't yet sure how these chemicals might harm animals.
他甚至不确定莫奈是否会回来还钱，但他仍然自愿帮助她。
He wasn't even sure if Monet would come back to return his money, but he still volunteered to help her.
我还不确定自己想成为什么样的工程师。
我不确定我想成为什么，但我相信你已经知道了。
I'm not sure what I want to be but I'm sure that you have already known.
“哦，是的。”这是她虚弱且不确定的回答。
一开始，医生们并不确定，但她确实有所好转。
At first, the doctors weren't sure, but she's really improved.
如果您不确定，最好与您的初级保健提供者联系。
If you're not sure, it is always a good idea to check with your primary care provider.
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