Researchers in this field have made some important new discoveries.
這個領域的研究人員有了一些重大的新發現。
Teachers are up against some major problems these days.
老師們最近面臨著一些重大問題。
Digital television has been around for some time now.
數字電視已經面市一段時間了。
A solution is still some way off.
解決辦法尚需時日。
Everyone experiences these problems at some time in their lives.
每個人在人生的某個階段都會經歷這些問題。