unsolved

音标发音

On the other hand, the transparent linking of wired and wireless networks is an unsolved problem.
另一方麪，有線和無線網絡間的透明連接是一個尚未解決的問題。
One big Extra in any endeavor is to identify new opportunities or unsolved problems, and then convene conversations around them.
任何努力中的一個大的額外因素就是確定新的機遇或沒有解決的問題，然後召集他們談話。
Some researchers regard sleep as one of the greatest unsolved mysteries of science, even though all animals do it in one form or another.
有些研究者將睡眠認爲是科學中一大未解之謎——雖然每一種動物都會睡覺，以這種或那種的形式。

It was a problem left unsolved by the out-going president.
Problems like the artificial heart are still unsolved, there's still room for innovation, still room to learn from what hasn't worked before, to learn from science, and to design something better.
人工心髒技術中存在的問題還沒有解決,還有創新發展的空間,仍有從未涉足的領域來研究,通過對科學原理的學以致用,去設計出更好的産品
耶魯公開課 - 生物毉學工程探索課程節選
Finally,there's a section that talks more about the unsolved mysteries and particularly the role that the Large Hadron Collider would play in that."

The case remains unsolved, and charges were never brought against Amy or her husband.
NEWYORKER: A Loaded Gun