There have been many changes in recent years.
近幾年發(fā)生了許多變化。
Call me if you have any problems regarding your work.
你如果還有什么工作方面的問題就給我打電話。
You seem to have set a new trend.
看來你們是開了一個新風(fēng)氣。
No new SARS cases have been reported in the region.
該區(qū)沒有新增非典型肺炎病例。
These changes have occurred over a long time span.
這些變化經(jīng)過了很長一段時間才形成。