What this actually means is unclear, but 725 customers is such an insignificant number that one has to wonder why it was mentioned at all.
这句话所要表达的意思很匪夷所思，但725个客户实在是个微不足道的数目，都不值得拿出来说。
At least 24 men are thought to be trapped but the exact number underground at the time of the incident remains unclear, the agency said.
至少24人被困，但确切数字不明，该机构说。
It remains unclear what is happening with the Number-3 reactor, which is fueled by a mix of uranium and plutonium.
现在还不清楚3号反应堆发生了什么情况，3号反应堆的燃料是混合的铀和钚。
While it's unclear how many of these products also claim to be natural, given all the greenwashing going on these days, it's likely to number in the thousands.
但是不清楚这些产品有多少声称是天然的，如今公司为树立支持环保的形象而做虚假公关，因此这样的产品很可能数以千计。
If you have a number of dark skinned people, dark colors like navy and black will blend into the skin and make for an unclear picture.
如果你的家人多数是深色肌肤，那么诸如藏青和黑色这样的颜色就会和人们的肤色混淆，从而使你的照片看上去色彩模糊。
Light sleepers may benefit from boosting the number of spindles in their brains, though the researchers acknowledge they are still unclear how the boost could be achieved.
那些睡眠浅又容易被惊醒的人们也许会从激活脑中大量的梭形波而受益，但研究者们至今尚未清楚到底通过什么样的办法去激发脑中的梭形波。
And with that number forecast to hit 9 billion by 2050, the future of organic farming remains unclear.
这个数据将在2050年达到90亿人口，有机农业的前景依然不容乐观。
Last year the number of working centrifuges at Natanz dropped, though it is unclear whether this was the result of Stuxnet.
去年Nantaz可工作的离心机数量减少，虽然还不清楚是否是斯达克造成的。
Last year a number of other superb Hellenistic pieces were also found at Vani, though whether these were made there or imported is still unclear.
去年人们在Vani也发掘出了一批无与伦比的古希腊风格的文物。但这些物品是在当地制造还是由外地运入目前尚不得而知。
Where the ID card number of the joint signer is not provided, or is wrong or unclear.
连署人未填具本人国民身分证统一编号或有错误、不明者。
In Taji, north of Baghdad, the number of factory workers still being held by gunmen who seized them Wednesday is unclear.
在巴格达以北的塔吉，星期三晚上被枪手绑架并一直扣押的工厂工人数目仍然不清楚。
The number of reactors that will be able to restart at some point in the future is unclear.
能够重新投入使用和反应器目前还不清楚。
Although a large number of people continue to take vitamin supplements, the long-term health benefits remain unclear.
虽然大量人群持续服用维生素补充剂，然而其长远的健康益处仍不明确。
Although a large number of people continue to take vitamin supplements, the long-term health benefits remain unclear.
虽然大量人群持续服用维生素补充剂，然而其长远的健康益处仍不明确。
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