Now I don't know exactly 现在我不太清楚
You can see smoke now but I don't know exactly where they are.
能看到烟，但我不知道他们具体在哪。
'It's not exactly clear where that bottom line is now,' says a current operations manager. 'I don't think they know that either.'
该公司一位运营经理称，“很难具体说清底线到底在哪里，我想老板们也不清楚。”
I left Yahoo in 1999, so I don't know exactly how many users they have now, but the last I heard there were about 20,000.
我1999年离开Yahoo，我不知道用户数量的具体数字，但是最近一次听到的是大约20,000。
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