这男孩当时也许知道真相，但我不很确定。
The boy might have known the truth, but I am not quite sure.
两个半月过去了，施瓦茨依然不很确定问题出在哪里。
Two and a half months later, Mr. Schwartz still isn't quite sure.
我不很确定，但我想我得到了下面也在追踪这些东西的报告。
I'm not sure, but I think we got a report from the Underside that they're tracking objects as well.
基因的进化与生物体适应速率之间的关系，很多人都很关注，但是仍然不很确定。
The relationship between rates of genomic evolution and organismal adaptation remains uncertain, despite considerable interest.
这几个月姚明一直在积极的治疗和恢复，但是他对他自己是否能回到赛场仍然不很确定。
Yao has been undergoing treatment and training in recent months, but doubts about whether he could make a comeback persists.
“这房子很丑，我们知道，”他说，“我们只是还不很确定肉做的房子的外形应该是怎样的。”
"It's very ugly, we know that," he said. "we're not sure what a meat house is supposed to look like."
科学家们并不很确定穿红色衣服是如何使运动员获得优势的，但这种颜色暗含着活力和危险的信号。
Scientists don't precisely known how wearing red might give athletes an advantage. But the color delivers implicit messages of vigor and danger.
另一方面，因为物体大小和移动的速度是由与之相关的参照物确定的，3D的效果很容易被像图2所模拟出来，但是图2所展示的3D效果并不很真实。
On the other hand, since object size and moving speed confirm to relative comparison with an other, a 3D effect can be deceived easily like fig.2. But the 3D effect got by fig.2 is not so real.
低压区仍浅和大的，并且中心仍然被不很好地确定，如此预报这场台风可能是难的。
The low pressure area is shallow and large, and the center is still not well defined, so again the forecast of this typhoon may be difficult.
有可能出现次级资产价值的继续恶化，而且信用创伤引起的更广阔范围内的经济冲击也不很明确，还有对公司名誉的损害程度也还没有确定。
Further deterioration in its subprime asset values is possible; the broader economic impact of the credit crunch is unclear; and the damage to the bank's reputation cannot yet be quantified.
有可能出现次级资产价值的继续恶化，而且信用创伤引起的更广阔范围内的经济冲击也不很明确，还有对公司名誉的损害程度也还没有确定。
Further deterioration in its subprime asset values is possible; the broader economic impact of the credit crunch is unclear; and the damage to the bank's reputation cannot yet be quantified.
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