就像我说的那样，首先，垃圾邮件是急需解决的问题。
As I said, first of all, spam is clearly something which needs to be fixed.
高精度的绝对大长度测量问题在工业生产中是一个急需解决的问题。
ABSTRACT The high precision absolute distance measurement is a problem which is still having to be solved in industry.
是它面临的急需解决的问题。这同时也是本文研究的主题及意义所在。
It is an urgent problem. At the same time, the theme and significance of this study is also.
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