demonstrated例句
Over the years he's
demonstrated a certain prescience in foreign affairs.
这些年来，他已经在外交事务方面表现出一定的预见性。
The BBC has just successfully
demonstrated a new digital radio transmission system.
英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。
Catherine
demonstrated the proper way to cleanse the face.
凯瑟琳演示了洁面的正确方法。